The 1990 Bentley Eight has 12 automatic transmission parts with verified fitment on this page — 7 part types and 4 brands, covering the 6.7L V8 engine. Each part includes a manufacturer part number and application notes.
The automatic transmission on the 1990 Bentley Eight covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. The largest groups are Band (4 parts), Bushing Kit (2 parts) and Clutch Hub (2 parts). The other 4 part types cover the remaining 4 parts.
Every part on this page is matched to the 6.7L V8 — the only engine offered in the 1990 Bentley Eight.
The most listed brands for 1990 Bentley Eight automatic transmission parts are SONNAX (5 parts), DURA-BOND (3 parts) and ATP (2 parts), plus 1 more brand.
Each part number listed for the 1990 Bentley Eight opens a page with 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 🇨🇦 CA | Front | View on Amazon |
| PIONEER | 767017 | 🇺🇸 US 🇨🇦 CA | Reverse | View on Amazon |
This table covers the apply bands inside the automatic transmission.
4 Band parts are listed for the 1990 Bentley Eight, from ATP and PIONEER.
This group includes ATP JX58, ATP JX60 and PIONEER 767043 and the remaining parts above.
Boost Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX | 400LB1 | 🇺🇸 US 🇨🇦 CA | Line Pressure Booster Kit | View on Amazon |
This table covers the Boost valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
One part is listed for the 1990 Bentley Eight — SONNAX 400LB1.
Bushing Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | TK54 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DURA-BOND | TK54HP | 🇺🇸 US 🇨🇦 CA | High Performance Kit | View on Amazon |
This table covers the Bushing kits.
2 Bushing Kit parts for the 1990 Bentley Eight come from DURA-BOND.
Listed part numbers: DURA-BOND TK54 and DURA-BOND TK54HP.
Case Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX | 34006SPB | 🇺🇸 US 🇨🇦 CA | Heavy Duty Case Bushing Kit | View on Amazon |
This table covers the Case 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: SONNAX 34006SPB.
Center Support Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | 02101 | 🇺🇸 US 🇨🇦 CA | Center 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 Housing Thrust Washer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX | 34298078 | 🇺🇸 US 🇨🇦 CA | Forward Clutch Hub Front WasherPack of 5 | View on Amazon |
This table covers the Clutch Housing Thrust washers.
This group shows a single part: SONNAX 34298078.
Clutch Hub
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX | 3432201 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Forward Clutch Hub | View on Amazon |
| SONNAX | 3432202K | 🇺🇸 US 🇨🇦 CA | Extreme Duty Forward Clutch Hub Kit | View on Amazon |
This table covers the Clutch hubs.
2 Clutch Hub parts for the 1990 Bentley Eight come from SONNAX.
Listed part numbers: SONNAX 3432201 and SONNAX 3432202K.
Buying Automatic Transmission Parts for a 1990 Bentley Eight
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 6.7L 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: Band and Bushing Kit .
Frequently Asked Questions
How many automatic transmission parts fit the 1990 Bentley Eight?
Our catalog currently lists 12 automatic transmission parts for the 1990 Bentley Eight across 7 subcategories and 4 brands, covering the 6.7L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 1990 Bentley Eight?
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 1990 Bentley Eight 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 1990 Bentley Eight?
Every part on this page is matched to the 6.7L 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 1990 Bentley Eight
Automatic Transmission Parts for Other Bentley Eight Years
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