The 1951 Aston Martin DB2 has 20 drivetrain parts with verified fitment on this page — 4 part types and 4 brands, covering the 2.6L L6 engine. Each part includes a manufacturer part number and application notes.
On the 1951 Aston Martin DB2, 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 Pinion Bearing / Race (9 parts), Differential Pinion Seal (5 parts) and Differential Carrier Bearing / Race (4 parts). The other 1 part type covers the remaining 2 parts.
The 1951 Aston Martin DB2 came with a single engine, the 2.6L L6, and every part is verified against it.
4 brands supply drivetrain parts for the 1951 Aston Martin DB2, led by WJB / INMOTION PARTS (8 parts), BCA (8 parts) and NATIONAL (2 parts), plus 1 more brand. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1951 Aston Martin DB2. 3 parts have it, including NATIONAL 02820 (Differential Pinion Bearing / Race) and WJB / INMOTION PARTS WS5778 (Differential Pinion Seal). Each part number opens a page with every vehicle that part fits.
Differential Carrier Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | WT24721 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS | WT24780 | 🇺🇸 US | Rearwith Salisbury 3HA Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB24721 | 🇺🇸 US | Race | View on Amazon |
| BCA | NB24780 | 🇺🇸 US | Rearwith Salisbury 3HA Axle | View on Amazon |
This table covers the bearings and races that support the differential carrier.
4 Differential Carrier Bearing / Race parts are listed for the 1951 Aston Martin DB2, from WJB / INMOTION PARTS and BCA.
In the Economy grade, WJB / INMOTION PARTS supplies 2 parts: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WT24721.
The Standard Replacement section lists 2 options from BCA — built to original-equipment specification. BCA NB24721 is listed in this group.
Part numbers include WJB / INMOTION PARTS WT24721, WJB / INMOTION PARTS WT24780 and BCA NB24721, among others listed above.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | WT02820 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS | WT31520 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS | WT02872 | 🇺🇸 US | Rear Outerwith Salisbury 3HA Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 02820 | 🇺🇸 US | Race | View on Amazon |
| NATIONAL Popular | 02872 | 🇺🇸 US | Rear Outerwith Salisbury 3HA Axle | View on Amazon |
| BCA | NB02820 | 🇺🇸 US | Race | View on Amazon |
| BCA | NB31520 | 🇺🇸 US | Race | View on Amazon |
| BCA | NB02872 | 🇺🇸 US | Rear Outerwith Salisbury 3HA Axle(s) | View on Amazon |
| BCA | NB31593 | 🇺🇸 US | Rear Innerwith Salisbury 3HA Axle(s) | View on Amazon |
This table covers the bearings and races on the differential pinion.
9 Differential Pinion Bearing / Race parts for the 1951 Aston Martin DB2 come from 3 brands — BCA, WJB / INMOTION PARTS and NATIONAL. The "Popular" part is NATIONAL 02820.
The Economy section: 3 options from WJB / INMOTION PARTS. WJB / INMOTION PARTS WT02820 is listed in this group.
Standard Replacement: 6 parts, from BCA and NATIONAL. A representative part number is NATIONAL 02820.
Part numbers include NATIONAL 02820, WJB / INMOTION PARTS WT02820 and WJB / INMOTION PARTS WT31520, among others listed above.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER | SR3481 | 🇺🇸 US | Rear14.3 mm Width | View on Amazon |
| WJB / INMOTION PARTS | WS99155 | 🇺🇸 US | Rear Outerwith Salisbury 3HA 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 1951 Aston Martin DB2, from SCHAEFFLER and WJB / INMOTION PARTS.
Part numbers include SCHAEFFLER SR3481 and WJB / INMOTION PARTS WS99155.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | WS5778 | 🇺🇸 US | Nitrile | View on Amazon |
| BCA | NS5778 | 🇺🇸 US | Nitrile | View on Amazon |
| BCA | NS5778V | 🇺🇸 US | Viton | View on Amazon |
| SCHAEFFLER | SS2633 | 🇺🇸 US | Rear16.891 mm Width | View on Amazon |
| WJB / INMOTION PARTS | WS5778V | 🇺🇸 US | Rear OuterViton Type | 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 are listed for the 1951 Aston Martin DB2, from WJB / INMOTION PARTS, BCA and SCHAEFFLER. WJB / INMOTION PARTS WS5778 carries the "Popular" badge.
Part numbers include WJB / INMOTION PARTS WS5778, BCA NS5778 and BCA NS5778V, among others listed above.
Buying Drivetrain Parts for a 1951 Aston Martin DB2
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 2.6L L6 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 Differential Pinion Seal .
Frequently Asked Questions
How many drivetrain parts fit the 1951 Aston Martin DB2?
Our catalog currently lists 20 drivetrain parts for the 1951 Aston Martin DB2 across 4 subcategories and 4 brands, covering the 2.6L L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 1951 Aston Martin DB2?
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 1951 Aston Martin DB2 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 1951 Aston Martin DB2?
Every part on this page is matched to the 2.6L L6 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 1951 Aston Martin DB2
Drivetrain Parts for Other Aston Martin DB2 Years
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