This page lists 25 drivetrain parts for the 1965 MG MGB, across 4 part types, covering the 1.8L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 1965 MG MGB moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are Differential Pinion Bearing / Race (11 parts), Universal Joint (6 parts) and Differential Pinion Seal (5 parts). The other 1 part type covers the remaining 3 parts.
Every part on this page is matched to the 1.8L L4 — the only engine offered in the 1965 MG MGB.
The most listed brands for 1965 MG MGB drivetrain parts are SKF (5 parts), WJB / INMOTION PARTS (4 parts) and BCA (4 parts), plus 6 more brands. Quality grades include Standard Replacement and Economy.
6 parts on this 1965 MG MGB page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including BCA NB15250X (Differential Pinion Bearing / Race) and WJB / INMOTION PARTS WS51098 (Differential Pinion Seal). Click any part number to see every vehicle that part fits.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FAMOUS BRAND | S15250X | 🇺🇸 US 🇨🇦 CA | RearOuter | View on Amazon |
| WJB / INMOTION PARTS | WT15250X | 🇺🇸 US | RaceOutside Diameter: 2.5 In | View on Amazon |
| WJB / INMOTION PARTS | WT15100 | 🇺🇸 US | Rear Outerwith British-Leyland Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular | NB15250X | 🇺🇸 US | Race Only | View on Amazon |
| TIMKEN Popular | 15250X | 🇺🇸 US | Race Only | View on Amazon |
| TIMKEN Popular | 3120 | 🇺🇸 US | Race Only | View on Amazon |
| BCA | NB15100 | 🇺🇸 US | Rear Outerwith British Leyland Axle(s) | View on Amazon |
| BCA | NB3120 | 🇺🇸 US | Race | View on Amazon |
| SCHAEFFLER | 15250X | 🇺🇸 US | Race Only | View on Amazon |
| SKF | 15250XVP | 🇺🇸 US | Race | View on Amazon |
| SKF | 3188S | 🇺🇸 US | with 1.250 In. Bearing Inside Diameter1.188" Width | View on Amazon |
This table covers the bearings and races on the differential pinion.
11 Differential Pinion Bearing / Race parts are listed for the 1965 MG MGB, from BCA, WJB / INMOTION PARTS, TIMKEN and 3 other brands. BCA NB15250X carries the "Popular" badge.
In the Economy grade, WJB / INMOTION PARTS and FAMOUS BRAND supply 3 parts: the catalog's value-priced group. A representative part number is FAMOUS BRAND S15250X.
The Standard Replacement section lists 8 options from BCA, TIMKEN, SKF and 1 other brand — built to original-equipment specification. BCA NB15250X is listed in this group.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER | SR3477 | 🇺🇸 US | Rearwith 1.500 In Shaft | View on Amazon |
| SKF | 480151 | 🇺🇸 US | Rear | View on Amazon |
| WJB / INMOTION PARTS | WS99149 | 🇺🇸 US | Rear Outerwith British Leyland Axle | View on Amazon |
This table covers the wear sleeves used to restore a grooved pinion seal surface.
3 Differential Pinion Repair Sleeve parts for the 1965 MG MGB come from 3 brands — SCHAEFFLER, SKF and WJB / INMOTION PARTS.
Part numbers include SCHAEFFLER SR3477, SKF 480151 and WJB / INMOTION PARTS WS99149.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | WS51098 | 🇺🇸 US | Rear Outerwith British Leyland Axle | View on Amazon |
| BCA | NS51098 | 🇺🇸 US | Rear Outerwith British Leyland Axle(s) | View on Amazon |
| SKF | 15142 | 🇺🇸 US | Rear | View on Amazon |
| TIMKEN | 481837 | 🇺🇸 US | RearBanjo Type Differential | View on Amazon |
| TIMKEN | 224470 | 🇺🇸 US | RearTube Type Differential | View on Amazon |
This table covers the seals at the differential pinion yoke. 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 Differential Pinion Seal parts for the 1965 MG MGB come from 4 brands — TIMKEN, WJB / INMOTION PARTS, BCA and 1 other brand. The "Popular" part is WJB / INMOTION PARTS WS51098.
This group includes WJB / INMOTION PARTS WS51098, BCA NS51098 and SKF 15142 and the remaining parts above.
Universal Joint
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA | 25101X | 🇺🇸 US | Spicer SelectNon-Greasable | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GMB Popular | 2200500 | 🇺🇸 US | GreasableGrease Fitting in Cross | View on Amazon |
| MOOG Popular | 341 | 🇺🇸 US | Fits Rear Driveshaft at Rear AxleExcept Short Grease Fitting | View on Amazon |
| DANA | 5101X | 🇺🇸 US | SpicerNon-Greasable | View on Amazon |
| GMB | 2200600 | 🇺🇸 US | GreasableGrease Fitting in Bearing Cap | View on Amazon |
| SKF | UJ341 | 🇺🇸 US | Greaseable | View on Amazon |
This table covers the U-joints in the driveshaft.
6 Universal Joint parts for the 1965 MG MGB come from 4 brands — DANA, GMB, MOOG and 1 other brand. The "Popular" part is GMB 2200500.
The Economy section: 1 option from DANA. DANA 25101X is listed in this group.
Standard Replacement: 5 parts, from GMB, MOOG, DANA and 1 other brand. A representative part number is GMB 2200500.
Part numbers include GMB 2200500, DANA 25101X and MOOG 341, among others listed above.
Buying Drivetrain Parts for a 1965 MG MGB
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 1.8L L4 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 differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Differential Pinion Bearing / Race and Universal Joint .
Frequently Asked Questions
How many drivetrain parts fit the 1965 MG MGB?
Our catalog currently lists 25 drivetrain parts for the 1965 MG MGB across 4 subcategories and 9 brands, covering the 1.8L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 1965 MG MGB?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. 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 differential or transfer-case fluid with any axle or seal job while everything is already open.
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 1965 MG MGB 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 1965 MG MGB?
Every part on this page is matched to the 1.8L L4 engine. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1965 MG MGB
Drivetrain Parts for Other MG MGB Years
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