The 1972 Bentley Corniche has 103 automatic transmission parts with verified fitment on this page — 27 part types and 14 brands, covering the 6.8L V8 engine. Each part includes a manufacturer part number and application notes.
On the 1972 Bentley Corniche, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Most of the listed parts are Extension Housing Seal (11 parts), Rebuild Kit (10 parts) and Filter (8 parts). The other 24 part types cover the remaining 74 parts.
Every part on this page is matched to the 6.8L V8 — the only engine offered in the 1972 Bentley Corniche.
The most listed brands for 1972 Bentley Corniche automatic transmission parts are ATP (36 parts), PIONEER (34 parts) and DURA-BOND (6 parts), plus 11 more brands. Quality grades include Standard Replacement, Overhaul Kit and High Performance.
15 parts on this 1972 Bentley Corniche page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including PIONEER 755043 (Bushing) and ATP HO8 (Extension Housing Seal). Click any part number to see every vehicle that part fits.
Band
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JX58 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| ATP | JX60 | 🇺🇸 US 🇨🇦 CA | Reverse | View on Amazon |
| PIONEER | 767043 | 🇺🇸 US | Front | View on Amazon |
| PIONEER | 767017 | 🇺🇸 US | Reverse | View on Amazon |
This table covers the apply bands inside the automatic transmission.
4 Band parts are listed for the 1972 Bentley Corniche, from ATP and PIONEER.
Listed part numbers: ATP JX58, ATP JX60 and PIONEER 767043, plus the other parts above.
Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Popular | 755043 | 🇺🇸 US | Trans. code THM400converter Housing | View on Amazon |
| PIONEER Popular | 755070 | 🇺🇸 US | RearTrans. code THM400 | View on Amazon |
| ATP | JB53 | 🇺🇸 US | Trans. code THM400Output Flange or Output Shaft - Wide | View on Amazon |
| ATP | CB4 | 🇺🇸 US | Trans. code THM400converter Housing - Front Pump - Babbit | View on Amazon |
| ATP | JB50 | 🇺🇸 US | Trans. code THM400Position: Case - Rear | View on Amazon |
| PIONEER | 755072 | 🇺🇸 US | Trans. code THM400Length: 1.00" | View on Amazon |
This table covers the bushings in this assembly. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
6 Bushing parts for the 1972 Bentley Corniche come from 2 brands — PIONEER and ATP. The "Popular" part is PIONEER 755043.
This group includes PIONEER 755043, PIONEER 755070 and ATP JB53 and the remaining parts above.
Bushing Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JBS1 | 🇺🇸 US | Trans. code THM400 | View on Amazon |
| DURA-BOND | TK54 | 🇺🇸 US | Trans. code THM400 | View on Amazon |
| DURA-BOND | TK54HP | 🇺🇸 US | High Performance Kit | View on Amazon |
| PIONEER | 754013 | 🇺🇸 US | Trans. code THM400 | View on Amazon |
This table covers the Bushing kits.
4 Bushing Kit parts for the 1972 Bentley Corniche come from 3 brands — DURA-BOND, ATP and PIONEER.
Part numbers include ATP JBS1, DURA-BOND TK54 and DURA-BOND TK54HP, among others listed above.
Center Support Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | 02101 | 🇺🇸 US | Trans. code THM400Center Support | View on Amazon |
This table covers the Center Support bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
This group shows a single part: DURA-BOND 02101.
Clutch Pack Piston Dam / Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JO52 | 🇺🇸 US | Direct Clutch Piston Set | View on Amazon |
| PIONEER | 758002 | 🇺🇸 US | Kit | View on Amazon |
This table covers the seals at the Clutch Pack Piston Dam. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Clutch Pack Piston Dam / Seal parts are listed for the 1972 Bentley Corniche, from ATP and PIONEER.
Listed part numbers: ATP JO52 and PIONEER 758002.
Dipstick / Fluid Filler Tube
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | PTS1021 | 🇺🇸 US 🇨🇦 CA | Dipstick Only | View on Amazon |
| PIONEER | 768023 | 🇺🇸 US 🇨🇦 CA | KitFiller Tube & Dipstick | View on Amazon |
This table covers the Dipstick / Fluid Filler tubes.
2 Dipstick / Fluid Filler Tube parts for the 1972 Bentley Corniche come from 2 brands — ATP and PIONEER.
Part numbers include ATP PTS1021 and PIONEER 768023.
Dipstick / Fluid Filler Tube Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JO16 | 🇺🇸 US | Trans. code THM400Intake Filler Tube To Case | View on Amazon |
| PIONEER | 762008 | 🇺🇸 US | Trans. code THM400Intake Filler Tube To Case | View on Amazon |
This table covers the seals at the Dipstick / Fluid Filler Tube. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Dipstick / Fluid Filler Tube Seal parts are listed for the 1972 Bentley Corniche, from ATP and PIONEER.
Part numbers include ATP JO16 and PIONEER 762008.
Extension Housing Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JB54 | 🇺🇸 US | Trans. code THM400Outer Diameter: 2" | View on Amazon |
| ATP | JB15 | 🇺🇸 US | Trans. code THM400Outer Diameter: 1-13/16" | View on Amazon |
| PIONEER | 755071 | 🇺🇸 US | Trans. code THM400Length: 1.50" | View on Amazon |
| PIONEER | 755063 | 🇺🇸 US | Trans. code THM400Length: 0.875" | View on Amazon |
This table covers the Extension Housing bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
4 Extension Housing Bushing parts for the 1972 Bentley Corniche come from 2 brands — ATP and PIONEER.
Listed part numbers: ATP JB54, ATP JB15 and PIONEER 755071, plus the other parts above.
Extension Housing Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JG54 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ATP | GG1080 | 🇺🇸 US 🇨🇦 CA | Position: Extension Housing to Transfer Case or adapter Housing | View on Amazon |
| PIONEER | 749090 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PIONEER | 749289 | 🇺🇸 US 🇨🇦 CA | Extension Housing to Transfer Case or adapter Housing | View on Amazon |
This table covers the gaskets that seal the Extension Housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
4 Extension Housing Gasket parts are listed for the 1972 Bentley Corniche, from ATP and PIONEER.
Listed part numbers: ATP JG54, ATP GG1080 and PIONEER 749090, plus the other parts above.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular | HO8 | 🇺🇸 US | Trans. code THM400with Long Extension | View on Amazon |
| NATIONAL Popular | 9449 | 🇺🇸 US | 3 speed trans.Trans. code THM400 | View on Amazon |
| SCHAEFFLER Popular | SS2960 | 🇺🇸 US | Type of construction: FmsaMetal, Spring, Auxiliary Lip | View on Amazon |
| ATP | JO57 | 🇺🇸 US | Trans. code THM400without Boot | View on Amazon |
| ATP | HO9 | 🇺🇸 US | Trans. code THM400without Boot | View on Amazon |
| NATIONAL | 5208 | 🇺🇸 US | Type: 74Includes Bushing | View on Amazon |
| PIONEER | 759023 | 🇺🇸 US | Trans. code THM400without Boot | View on Amazon |
| PIONEER | 759016 | 🇺🇸 US | Trans. code THM400without Boot | View on Amazon |
| PIONEER | 759020 | 🇺🇸 US | Trans. code THM400with Long Extension | View on Amazon |
| WJB / INMOTION PARTS | WS9449 | 🇺🇸 US | Width (In): 0.58199999999999996 In | View on Amazon |
| WJB / INMOTION PARTS | WS5208 | 🇺🇸 US | Material: NitrileWidth (In): 1 in | View on Amazon |
This table covers the seals at the Extension Housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
11 Extension Housing Seal parts are listed for the 1972 Bentley Corniche, from ATP, PIONEER, NATIONAL and 2 other brands. ATP HO8 carries the "Popular" badge.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular | TF29 | 🇺🇸 US | OE Replacement | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular | B29 | 🇺🇸 US | Includes: (1) Gasket, (1) ScreenPremium Replacement | View on Amazon |
| ATP | JX150 | 🇺🇸 US 🇨🇦 CA | In-Line Filter KitIncludes: (2) Hoses, (4) Clamps | View on Amazon |
| ATP | JX151 | 🇺🇸 US 🇨🇦 CA | In-Line Filter KitInline Cooler Filter | View on Amazon |
| ATP | IL150 | 🇺🇸 US 🇨🇦 CA | In-Line Filter KitInline Cooler Filter | View on Amazon |
| PIONEER | 745042 | 🇺🇸 US 🇨🇦 CA | Media: Brass Media Filter | View on Amazon |
| PIONEER | 745119 | 🇺🇸 US 🇨🇦 CA | Inline Cooler FilterIn-Line Filter Kit | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JX59 | 🇺🇸 US | Does Not Include Gasket | View on Amazon |
This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
8 Filter parts for the 1972 Bentley Corniche come from 2 brands — ATP and PIONEER. The "Popular" part is ATP TF29.
The Economy section lists 1 option from ATP — the catalog's value-priced group. ATP TF29 is listed in this group.
In the Standard Replacement grade, ATP and PIONEER supply 6 parts: built to original-equipment specification. A representative part number is ATP B29.
1 further part sits outside the graded sections, with the same engine-level match.
This group includes ATP TF29, ATP B29 and ATP JX150 and the remaining parts above.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | TOS18621 | 🇺🇸 US | 3 speed trans.Trans. code THM400 | View on Amazon |
| MAHLE / CLEVITE Popular | W39341TC | 🇺🇸 US | Cork with Metal CarrierAutomatic Transmission Oil Pan Gasket | View on Amazon |
| ATP | JG50 | 🇺🇸 US | Trans. code THM400Fiber | View on Amazon |
| MAHLE / CLEVITE | W39341 | 🇺🇸 US | Cork-RubberAutomatic Transmission Oil Pan Gasket | View on Amazon |
| PIONEER | 749020 | 🇺🇸 US | Fiber | View on Amazon |
| VICTOR REINZ | 711493800 | 🇺🇸 US 🇨🇦 CA | 3 speed trans.Trans. code THM400 | View on Amazon |
This table covers the gaskets that seal the Fluid Pan. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
6 Fluid Pan Gasket parts for the 1972 Bentley Corniche come from 5 brands — MAHLE / CLEVITE, FEL-PRO, ATP and 2 other brands. The "Popular" part is FEL-PRO TOS18621.
This group includes FEL-PRO TOS18621, MAHLE / CLEVITE W39341TC and ATP JG50 and the remaining parts above.
Fluid Pump Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | 44034 | 🇺🇸 US | Trans. code THM400Pump Body | View on Amazon |
| DURA-BOND | 44034TG | 🇺🇸 US | Dry Film Lubricated | View on Amazon |
This table covers the Fluid Pump bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
2 Fluid Pump Bushing parts for the 1972 Bentley Corniche come from DURA-BOND.
This group includes DURA-BOND 44034 and DURA-BOND 44034TG.
Fluid Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JG53 | 🇺🇸 US | Trans. code THM400Position: Front Pump to Case | View on Amazon |
| PIONEER | 749075 | 🇺🇸 US | Trans. code THM400Front Pump to Case | View on Amazon |
This table covers the gaskets that seal the Fluid Pump. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
2 Fluid Pump Gasket parts are listed for the 1972 Bentley Corniche, from ATP and PIONEER.
This group includes ATP JG53 and PIONEER 749075.
Fluid Pump O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | SO21 | 🇺🇸 US | Trans. code THM400High Clutch Piston Set | View on Amazon |
| PIONEER | 762007 | 🇺🇸 US | Trans. code THM400High Clutch Piston Set | View on Amazon |
| PIONEER | 762037 | 🇺🇸 US | Trans. code THM400Front Pump | View on Amazon |
This table covers the Fluid Pump O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
3 Fluid Pump O-Ring parts for the 1972 Bentley Corniche come from 2 brands — PIONEER and ATP.
Part numbers include ATP SO21, PIONEER 762007 and PIONEER 762037.
Fluid Pump Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS88187 | 🇺🇸 US | Front3 speed trans. | View on Amazon |
| NATIONAL | 99187 | 🇺🇸 US | 3 speed trans.Trans. code THM400 | View on Amazon |
| WJB / INMOTION PARTS | WS99187 | 🇺🇸 US | Front3 speed trans. | View on Amazon |
This table covers the precision wear sleeves used to restore a transmission pump seal surface.
3 Fluid Pump Repair Sleeve parts are listed for the 1972 Bentley Corniche, from BCA, NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: BCA NS88187, NATIONAL 99187 and WJB / INMOTION PARTS WS99187.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 6712NA | 🇺🇸 US | Front3 speed trans. | View on Amazon |
| ATP | CO4 | 🇺🇸 US | Trans. code THM400Outer Diameter: 3" | View on Amazon |
| BCA | NS6712NA | 🇺🇸 US | Front3 speed trans. | View on Amazon |
| PIONEER | 759021 | 🇺🇸 US | Trans. code THM400Outer Diameter: 3" | View on Amazon |
| WJB / INMOTION PARTS | WS6712NA | 🇺🇸 US | Front3 speed trans. | View on Amazon |
This table covers the seals at the Fluid Pump. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
5 Fluid Pump Seal parts are listed for the 1972 Bentley Corniche, from NATIONAL, ATP, BCA and 2 other brands. NATIONAL 6712NA carries the "Popular" badge.
This group includes NATIONAL 6712NA, ATP CO4 and BCA NS6712NA and the remaining parts above.
Gasket Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER | 748027 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PIONEER | 748028 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the gasket kits for this job. Typical signs include the leaks that sent this assembly to the bench. Confirm the kit matches the opening you are sealing; unused leftover pieces often belong to another configuration.
PIONEER supplies both parts for the 1972 Bentley Corniche.
This group includes PIONEER 748027 and PIONEER 748028.
Governor / Modulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular | JX67 | 🇺🇸 US 🇨🇦 CA | 1 Red Stripe3.21:1, 3.40:1, 3.73:1, or 4.11:1 Ratio | View on Amazon |
| ATP | JX66 | 🇺🇸 US 🇨🇦 CA | Includes: (1) Hose | View on Amazon |
| ATP | JX76 | 🇺🇸 US 🇨🇦 CA | Adjustable 12-19.5 - EDA 2.48 - Black/Red - with EGR | View on Amazon |
| PIONEER | 747001 | 🇺🇸 US 🇨🇦 CA | Includes (1) Hose | View on Amazon |
| PIONEER | 747024 | 🇺🇸 US 🇨🇦 CA | Adjustable 12-19.5EDA 2.48 | View on Amazon |
Kickdown Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 520604 | 🇺🇸 US | Trans. code THM400 | View on Amazon |
This table covers the Kickdown solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.
One part is listed for the 1972 Bentley Corniche — ROSTRA 520604.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL | 8792S | 🇺🇸 US | 3 speed trans.Trans. code THM400 | View on Amazon |
| WJB / INMOTION PARTS | WS8792S | 🇺🇸 US | 3 speed trans.General Motors trans. | View on Amazon |
This table covers the seals at the Manual Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Manual Shaft Seal parts are listed for the 1972 Bentley Corniche, from NATIONAL and WJB / INMOTION PARTS.
Part numbers include NATIONAL 8792S and WJB / INMOTION PARTS WS8792S.
Output Shaft Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | 8624988 | 🇺🇸 US | Trans. code THM400Output Shaft (Narrow) | View on Amazon |
This table covers the Output Shaft bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
One part is listed for the 1972 Bentley Corniche — DURA-BOND 8624988.
Output Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS9449 | 🇺🇸 US | External Markings: 1.890 X 2.700 X 0.582 | View on Amazon |
| SCHAEFFLER | SS2962 | 🇺🇸 US | Seal KitType of Construction: FM | View on Amazon |
This table covers the seals at the Output Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Output Shaft Seal parts for the 1972 Bentley Corniche come from 2 brands — BCA and SCHAEFFLER.
Part numbers include BCA NS9449 and SCHAEFFLER SS2962.
Rebuild Kit
Banner Kit (Overhaul Kit + Friction Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JM10 | 🇺🇸 US | Banner KitIncludes: All paper gaskets, Pan gasket, Rubber O rings, Rubber Lip seals, metal clad seals, sealing rings (full Banner Kit), friction clutch plates | View on Amazon |
| PIONEER | 751035 | 🇺🇸 US | Banner KitIncludes: All paper gaskets, Pan gasket, Rubber O rings, Rubber Lip seals, metal clad seals, sealing rings (short), friction clutch plates | View on Amazon |
Deluxe Kit (Master Kit + Filter, Band & Common Bushings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER | 753024 | 🇺🇸 US | Includes: All paper gaskets, Pan gasket, Rubber O rings, Rubber Lip seals, metal clad seals, sealing rings, Friction Clutch plates, Steel Clutch Plates, Filter, Front & Rear Bushings, 2 Bands,and Modulator.PLUS Kit | View on Amazon |
Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular | JMS9 | 🇺🇸 US | Includes: All paper gaskets, Pan gasket, Rubber O rings, Rubber Lip seals, metal clad seals, sealing rings, Friction Clutch plates, Steel Clutch Plates, Filter, Front & Rear Bushings, 2 Bands,and Modulator.PLUS Kit | View on Amazon |
| ATP | JM9 | 🇺🇸 US | Standard Kit | View on Amazon |
| PIONEER | 752002 | 🇺🇸 US | Standard Kit | View on Amazon |
Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular | JGS52 | 🇺🇸 US | Gaskets, Seals, O-Rings, and Sealing Rings | View on Amazon |
| ATP | JGS53 | 🇺🇸 US | Does Not Include Sealing Rings or Extension Housing Seal | View on Amazon |
| PIONEER | 750038 | 🇺🇸 US | Overhaul KitIncludes: All paper gaskets, Pan gasket, Rubber O rings, Rubber Lip seals, metal clad seals, sealing rings (full Kit) | View on Amazon |
| TRANSTEC | 81000348 | 🇺🇸 US 🇨🇦 CA | without PistonsDuraprene Pan Gasket | View on Amazon |
This table covers the rebuild kits for this assembly.
10 Rebuild Kit parts are listed for the 1972 Bentley Corniche, from ATP, PIONEER and TRANSTEC. ATP JMS9 carries the "Popular" badge.
In the Banner Kit (Overhaul Kit + Friction Clutch Plates) grade, ATP and PIONEER supply 2 parts: grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is ATP JM10.
In the Deluxe Kit (Master Kit + Filter, Band & Common Bushings) grade, PIONEER supplies 1 part: grouped under the catalog's "Deluxe Kit (Master Kit + Filter, Band & Common Bushings)" designation — the notes column spells out what sets them apart. A representative part number is PIONEER 753024.
The Master Kit (Overhaul Kit + Friction & Steel Clutch Plates) section lists 3 options from ATP and PIONEER — grouped under the catalog's "Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)" designation — the notes column spells out what sets them apart. ATP JMS9 is listed in this group.
In the Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) grade, ATP, PIONEER and TRANSTEC supply 4 parts: grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. A representative part number is ATP JGS52.
Shift Improvement Kit
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Popular | SK400 | 🇺🇸 US | Shift KitFor 400 Transmissions | View on Amazon |
| PIONEER | 765010 | 🇺🇸 US | Trans. code THM400Improver Kit | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JK1 | 🇺🇸 US | Contains Heavy Duty Upgraded (from OE) SpringsMay Contain Spacer Plates, Spool Valves & Gaskets Depending on Revision of OE | View on Amazon |
High Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Popular | 40012 | 🇺🇸 US | Reprogramming KitWith Gear Command | View on Amazon |
| TRANSGO | 4003 | 🇺🇸 US | Reprogramming KitWith Manual Shift Control | View on Amazon |
| TRANSGO | 400PRO | 🇺🇸 US | Reprogramming KitWith Gear Command | View on Amazon |
This table covers the Shift Improvement kits.
6 Shift Improvement Kit parts for the 1972 Bentley Corniche come from 3 brands — TRANSGO, PIONEER and ATP. The "Popular" part is TRANSGO SK400.
In the Daily Driver grade, TRANSGO and PIONEER supply 2 parts: grouped for everyday commuting duty. A representative part number is TRANSGO SK400.
In the Heavy Duty grade, ATP supplies 1 part: rated for severe service. A representative part number is ATP JK1.
The High Performance section lists 3 options from TRANSGO — engineered beyond original-equipment specification. TRANSGO 40012 is listed in this group.
This group includes TRANSGO SK400, PIONEER 765010 and ATP JK1 and the remaining parts above.
Shift Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 8792S | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ATP | SO19 | 🇺🇸 US | Trans. code THM400 | View on Amazon |
| PIONEER | 759022 | 🇺🇸 US | Trans. code THM400 | View on Amazon |
| SCHAEFFLER | SS2114 | 🇺🇸 US | 3 speed trans.Trans. code THM400 | View on Amazon |
This table covers the seals at the Shift Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
4 Shift Shaft Seal parts are listed for the 1972 Bentley Corniche, from ACDELCO, ATP, PIONEER and 1 other brand.
This group includes ACDELCO 8792S, ATP SO19 and PIONEER 759022 and the remaining parts above.
Shift Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER | 771002 | 🇺🇸 US 🇨🇦 CA | detentshort wire | View on Amazon |
This table covers the Shift solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.
One part is listed for the 1972 Bentley Corniche — PIONEER 771002.
Buying Automatic Transmission Parts for a 1972 Bentley Corniche
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Confirm you have the 6.8L V8 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Extension Housing Seal and Rebuild Kit .
Frequently Asked Questions
How many automatic transmission parts fit the 1972 Bentley Corniche?
Our catalog currently lists 103 automatic transmission parts for the 1972 Bentley Corniche across 27 subcategories and 14 brands, covering the 6.8L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 1972 Bentley Corniche?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1972 Bentley Corniche was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1972 Bentley Corniche?
Every part on this page is matched to the 6.8L V8 engine. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1972 Bentley Corniche
Automatic Transmission Parts for Other Bentley Corniche Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.