This page lists 18 drivetrain parts for the 1961 Triumph TR4, across 5 part types, covering both the 2.0L L4 and the 2.1L L4. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 1961 Triumph TR4 moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are Differential Pinion Bearing / Race (6 parts), Universal Joint (5 parts) and Differential Carrier Bearing / Race (3 parts). The other 2 part types cover the remaining 4 parts.
The 1961 Triumph TR4 was sold with both the 2.0L L4 and the 2.1L L4. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
9 brands supply drivetrain parts for the 1961 Triumph TR4, led by BCA (5 parts), WJB / INMOTION PARTS (4 parts) and SCHAEFFLER (2 parts), plus 6 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1961 Triumph TR4. 3 parts have it, including WJB / INMOTION PARTS WT15245 (Differential Pinion Bearing / Race) and GMB 2201100 (Universal Joint). Each part number opens a page with every vehicle that part fits.
Differential Carrier Bearing / Race
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: 2.1L L4 | NB16283 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: 2.1L L4 | NB16150 | 🇺🇸 US | Rearwith Standard CT Axle(s) | View on Amazon |
| NATIONAL Fits: 2.1L L4 | 16283 | 🇺🇸 US | Race | View on Amazon |
This table covers the bearings and races that support the differential carrier.
3 Differential Carrier Bearing / Race parts are listed for the 1961 Triumph TR4, from BCA and NATIONAL.
This group includes BCA NB16283, BCA NB16150 and NATIONAL 16283.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular Fits: 2.1L L4 | WT15245 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.1L L4 | WT15100 | 🇺🇸 US | Rear Outerwith Standard CT Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.1L L4 | AC15245 | 🇺🇸 US 🇨🇦 CA | GoldRace Only | View on Amazon |
| BCA Fits: 2.1L L4 | NB15245 | 🇺🇸 US | Race Only | View on Amazon |
| BCA Fits: 2.1L L4 | NB15100 | 🇺🇸 US | Rear Outerwith Standard CT Axle(s) | View on Amazon |
| BCA Fits: 2.1L L4 | NB3120 | 🇺🇸 US | Race | View on Amazon |
This table covers the bearings and races on the differential pinion.
6 Differential Pinion Bearing / Race parts for the 1961 Triumph TR4 come from 3 brands — BCA, WJB / INMOTION PARTS and ACDELCO. The "Popular" part is WJB / INMOTION PARTS WT15245.
The Economy section lists 2 options from WJB / INMOTION PARTS — the catalog's value-priced group. WJB / INMOTION PARTS WT15245 is listed in this group.
In the Standard Replacement grade, BCA and ACDELCO supply 4 parts: built to original-equipment specification. A representative part number is ACDELCO AC15245.
This group includes WJB / INMOTION PARTS WT15245, WJB / INMOTION PARTS WT15100 and ACDELCO AC15245 and the remaining parts above.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: 2.1L L4 | SR3477 | 🇺🇸 US | Rearwith 1.500 In Shaft | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.1L L4 | WS99149 | 🇺🇸 US | Rear Outerwith Standard CT Axle | View on Amazon |
This table covers the wear sleeves used to restore a grooved pinion seal surface.
2 Differential Pinion Repair Sleeve parts are listed for the 1961 Triumph TR4, from SCHAEFFLER and WJB / INMOTION PARTS.
Listed part numbers: SCHAEFFLER SR3477 and WJB / INMOTION PARTS WS99149.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: 2.1L L4 | SS2582 | 🇺🇸 US | Rear2.69" O.D. X 0.5" Width | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.1L L4 | WS470487N | 🇺🇸 US | Rear Outerwith Standard CT Axle | 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.
2 Differential Pinion Seal parts are listed for the 1961 Triumph TR4, from SCHAEFFLER and WJB / INMOTION PARTS.
Listed part numbers: SCHAEFFLER SS2582 and WJB / INMOTION PARTS WS470487N.
Universal Joint
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Fits: 2.1L L4 | 253214X | 🇺🇸 US | Spicer SelectGreasable | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GMB Popular Fits: 2.1L L4 | 2201100 | 🇺🇸 US | GreasableGrease Fitting in Cross | View on Amazon |
| DANA Fits: 2.1L L4 | 53214X | 🇺🇸 US | SpicerGreasable | View on Amazon |
| FVP Fits: 2.1L L4 | 2201100 | 🇺🇸 US | GreasableGrease Fitting in Cross | View on Amazon |
| SKF Fits: 2.1L L4 | UJ344 | 🇺🇸 US | Greaseable | View on Amazon |
This table covers the U-joints in the driveshaft.
5 Universal Joint parts are listed for the 1961 Triumph TR4, from DANA, GMB, FVP and 1 other brand. GMB 2201100 carries the "Popular" badge.
Economy: 1 part, from DANA. A representative part number is DANA 253214X.
The Standard Replacement section: 4 options from GMB, DANA, FVP and 1 other brand. GMB 2201100 is listed in this group.
This group includes GMB 2201100, DANA 253214X and DANA 53214X and the remaining parts above.
Buying Drivetrain Parts for a 1961 Triumph TR4
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Every drivetrain part here is engine-specific; each row shows which engine(s) it fits.
- 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 1961 Triumph TR4?
Our catalog currently lists 18 drivetrain parts for the 1961 Triumph TR4 across 5 subcategories and 9 brands, covering both the 2.0L L4 and the 2.1L L4. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1961 Triumph TR4 engines?
Yes. Every drivetrain part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of drivetrain problems on a 1961 Triumph TR4?
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 1961 Triumph TR4 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 1961 Triumph TR4?
First match the engine — each row shows which engine(s) the part fits. 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 1961 Triumph TR4
Drivetrain Parts for Other Triumph TR4 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.