33 Drivetrain parts are listed for the 1966 Triumph Spitfire, in 4 part types, covering the 1.2L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1966 Triumph Spitfire, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. Most of the listed parts are Differential Carrier Bearing / Race (13 parts), Differential Pinion Bearing / Race (13 parts) and Universal Joint (6 parts). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 1.2L L4 — the only engine offered in the 1966 Triumph Spitfire.
The most listed brands for 1966 Triumph Spitfire drivetrain parts are SKF (8 parts), TIMKEN (5 parts) and BCA (5 parts), plus 9 more brands. Quality grades include Standard Replacement and Economy.
8 parts on this 1966 Triumph Spitfire page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WJB / INMOTION PARTS WT15245 (Differential Carrier Bearing / Race) and TIMKEN 21212 (Differential Pinion Bearing / Race). Click any part number to see every vehicle that part fits.
Differential Carrier Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | WT15245 | 🇺🇸 US | Race | View on Amazon |
| FAMOUS BRAND | S15123 | 🇺🇸 US 🇨🇦 CA | RearSTD FC | View on Amazon |
| POWER TRAIN COMPONENTS | PT15123 | 🇺🇸 US 🇨🇦 CA | Rearwith Standard FC Axle | View on Amazon |
| ULTRA-POWER | WT15123 | 🇺🇸 US 🇨🇦 CA | Rearwith Standard FC Axle | View on Amazon |
| WJB / INMOTION PARTS | WT15123 | 🇺🇸 US | Bearing Shape: Cylindrical | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Popular | 15245 | 🇺🇸 US | Race Only | View on Amazon |
| TIMKEN Popular | 15123 | 🇺🇸 US | Rear | View on Amazon |
| ACDELCO | AC15245 | 🇺🇸 US 🇨🇦 CA | GoldRace Only | View on Amazon |
| BCA | NB15245 | 🇺🇸 US | Race Only | View on Amazon |
| BCA | NB15123 | 🇺🇸 US | Rearwith Standard FC Axle(s) | View on Amazon |
| SCHAEFFLER | K15123 | 🇺🇸 US | Rear19.05 mm Width | View on Amazon |
| SKF | BR15245 | 🇺🇸 US | Race | View on Amazon |
| SKF | BR15123 | 🇺🇸 US | with 1.2500 In. Bearing Inside Diameterwith 2.5000 In. Outside Diameter Bearing(S) | View on Amazon |
This table covers the bearings and races that support the differential carrier.
13 Differential Carrier Bearing / Race parts for the 1966 Triumph Spitfire come from 9 brands — WJB / INMOTION PARTS, TIMKEN, BCA and 6 other brands. The "Popular" part is WJB / INMOTION PARTS WT15245.
The Economy section lists 5 options from WJB / INMOTION PARTS, FAMOUS BRAND, POWER TRAIN COMPONENTS and 1 other brand — the catalog's value-priced group. WJB / INMOTION PARTS WT15245 is listed in this group.
In the Standard Replacement grade, TIMKEN, BCA, SKF and 2 other brands supply 8 parts: built to original-equipment specification. A representative part number is TIMKEN 15245.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | WT02420 | 🇺🇸 US | Outside Diameter: 2.6880000000000002 InRace | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Popular | 21212 | 🇺🇸 US | Race | View on Amazon |
| TIMKEN Popular | 21075 | 🇺🇸 US | Rear Outer | View on Amazon |
| TIMKEN Popular | 02475 | 🇺🇸 US | Rear Inner | View on Amazon |
| BCA | NB21212 | 🇺🇸 US | Race Only | View on Amazon |
| SCHAEFFLER | 2420 | 🇺🇸 US | Race | View on Amazon |
| SCHAEFFLER | K2475 | 🇺🇸 US | Rear Inner22.225 mm Width | View on Amazon |
| SKF | BR21075 | 🇺🇸 US | with 0.7500 In. Bearing Inside Diameter | View on Amazon |
| SKF | BR02475 | 🇺🇸 US | with 1.2500 In. Bearing Inside Diameterwith 2.6875 In. Outside Diameter Bearing(S) | View on Amazon |
| SKF | BR21212 | 🇺🇸 US | Race | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB02420 | 🇺🇸 US | Race | View on Amazon |
| BCA | NB21075 | 🇺🇸 US | Bearing Shape: Cylindrical | View on Amazon |
| SKF | BR02420 | 🇺🇸 US | Race | View on Amazon |
This table covers the bearings and races on the differential pinion.
13 Differential Pinion Bearing / Race parts are listed for the 1966 Triumph Spitfire, from SKF, TIMKEN, BCA and 2 other brands. TIMKEN 21212 carries the "Popular" badge.
Economy: 1 part, from WJB / INMOTION PARTS. A representative part number is WJB / INMOTION PARTS WT02420.
The Standard Replacement section: 9 options from TIMKEN, SKF, SCHAEFFLER and 1 other brand. TIMKEN 21212 is listed in this group.
3 ungrouped parts are not assigned to a grade, with the same engine-level match.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF | 13500 | 🇺🇸 US | Rear | 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.
This group shows a single part: SKF 13500.
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 1966 Triumph Spitfire 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 1966 Triumph Spitfire
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 1.2L 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 Carrier Bearing / Race and Differential Pinion Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1966 Triumph Spitfire?
Our catalog currently lists 33 drivetrain parts for the 1966 Triumph Spitfire across 4 subcategories and 12 brands, covering the 1.2L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 1966 Triumph Spitfire?
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 1966 Triumph Spitfire 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 1966 Triumph Spitfire?
Every part on this page is matched to the 1.2L 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 1966 Triumph Spitfire
Drivetrain Parts for Other Triumph Spitfire Years
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