1978 Bentley Corniche Automatic Transmission Parts

This table covers the apply bands inside the automatic transmission. Read more

4 Band parts are listed for the 1978 Bentley Corniche, from ATP and PIONEER.

Listed part numbers: ATP JX58, ATP JX60 and PIONEER 767043, plus the other parts above.

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. Read more

6 Bushing parts for the 1978 Bentley Corniche come from 2 brands — PIONEER and ATP. The "Popular" part is PIONEER 755043.

Part numbers include PIONEER 755043, PIONEER 755070 and ATP JB53, among others listed above.

This table covers the Bushing kits. Read more

4 Bushing Kit parts for the 1978 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.

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. Read more

This group shows a single part: DURA-BOND 02101.

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. Read more

2 Clutch Pack Piston Dam / Seal parts are listed for the 1978 Bentley Corniche, from ATP and PIONEER.

Listed part numbers: ATP JO52 and PIONEER 758002.

This table covers the Dipstick / Fluid Filler tubes. Read more

2 Dipstick / Fluid Filler Tube parts for the 1978 Bentley Corniche come from 2 brands — ATP and PIONEER.

Listed part numbers: ATP PTS1021 and PIONEER 768023.

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. Read more

2 Dipstick / Fluid Filler Tube Seal parts are listed for the 1978 Bentley Corniche, from ATP and PIONEER.

Listed part numbers: ATP JO16 and PIONEER 762008.

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. Read more

2 Extension Housing Bushing parts for the 1978 Bentley Corniche come from 2 brands — ATP and PIONEER.

This group includes ATP JB54 and PIONEER 755071.

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. Read more

4 Extension Housing Gasket parts are listed for the 1978 Bentley Corniche, from ATP and PIONEER.

Part numbers include ATP JG54, ATP GG1080 and PIONEER 749090, among others listed above.

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. Read more

7 Extension Housing Seal parts are listed for the 1978 Bentley Corniche, from NATIONAL, WJB / INMOTION PARTS, SCHAEFFLER and 2 other brands. NATIONAL 9449 carries the "Popular" badge.

Listed part numbers: NATIONAL 9449, SCHAEFFLER SS2960 and ATP JO57, plus the other parts above.

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. Read more

8 Filter parts for the 1978 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.

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. Read more

6 Fluid Pan Gasket parts for the 1978 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.

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. Read more

2 Fluid Pump Bushing parts for the 1978 Bentley Corniche come from DURA-BOND.

This group includes DURA-BOND 44034 and DURA-BOND 44034TG.

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. Read more

2 Fluid Pump Gasket parts are listed for the 1978 Bentley Corniche, from ATP and PIONEER.

Listed part numbers: ATP JG53 and PIONEER 749075.

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. Read more

3 Fluid Pump O-Ring parts for the 1978 Bentley Corniche come from 2 brands — PIONEER and ATP.

This group includes ATP SO21, PIONEER 762007 and PIONEER 762037.

This table covers the precision wear sleeves used to restore a transmission pump seal surface. Read more

3 Fluid Pump Repair Sleeve parts are listed for the 1978 Bentley Corniche, from BCA, NATIONAL and WJB / INMOTION PARTS.

Part numbers include BCA NS88187, NATIONAL 99187 and WJB / INMOTION PARTS WS99187.

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. Read more

5 Fluid Pump Seal parts are listed for the 1978 Bentley Corniche, from NATIONAL, ATP, BCA and 2 other brands. NATIONAL 6712NA carries the "Popular" badge.

Part numbers include NATIONAL 6712NA, ATP CO4 and BCA NS6712NA, among others listed above.

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. Read more

One part is listed for the 1978 Bentley Corniche — PIONEER 748027.

This table covers the governors and modulators that control transmission shift pressure. Read more

5 Governor / Modulator parts for the 1978 Bentley Corniche come from 3 brands — ROSTRA, ATP and PIONEER. The "Popular" part is ATP JX76.

Part numbers include ATP JX76, PIONEER 747024 and ROSTRA 510017, among others listed above.

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. Read more

One part is listed for the 1978 Bentley Corniche — ROSTRA 520604.

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. Read more

2 Manual Shaft Seal parts are listed for the 1978 Bentley Corniche, from NATIONAL and WJB / INMOTION PARTS.

Listed part numbers: NATIONAL 8792S and WJB / INMOTION PARTS WS8792S.

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. Read more

2 Output Shaft Bushing parts are listed for the 1978 Bentley Corniche, from DURA-BOND and PIONEER.

Listed part numbers: DURA-BOND 8624988 and PIONEER 755073.

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. Read more

2 Output Shaft Seal parts for the 1978 Bentley Corniche come from 2 brands — BCA and SCHAEFFLER.

Listed part numbers: BCA NS9449 and SCHAEFFLER SS2962.

This table covers the rebuild kits for this assembly. Read more

10 Rebuild Kit parts are listed for the 1978 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.

This table covers the Shift Improvement kits. Read more

6 Shift Improvement Kit parts for the 1978 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.

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. Read more

4 Shift Shaft Seal parts are listed for the 1978 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.

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. Read more

One part is listed for the 1978 Bentley Corniche — PIONEER 771002.

This table covers the one-way sprag clutches in the transmission. Read more

One part is listed for the 1978 Bentley Corniche — ATP JX53.

This table covers the Stator Support 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. Read more

This group shows a single part: DURA-BOND 8623944.

This table covers the Sun Gear 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. Read more

One part is listed for the 1978 Bentley Corniche — PIONEER 755066.

This table covers the Torque converters. Typical signs include a sulfur smell, rattling substrate, or an efficiency code. Confirm CARB vs Federal certification in the notes before ordering. Read more

This group shows a single part: TC REMANUFACTURING B3.

This table covers the wear sleeves used to restore a Torque Converter seal surface. Read more

One part is listed for the 1978 Bentley Corniche — SCHAEFFLER SR3506.

This table covers the seals at the Torque Converter 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. Read more

One part is listed for the 1978 Bentley Corniche — SCHAEFFLER SS2912.

This table covers the conditioners and additives used with this transmission fluid. Read more

8 Transmission Fluid Additive parts for the 1978 Bentley Corniche come from 2 brands — LUBEGARD and ATP. The "Popular" part is LUBEGARD 19610.

This group includes LUBEGARD 19610, LUBEGARD 60902 and ATP AT202 and the remaining parts above.