14 Engine parts are listed for the 2003 Aston Martin DB7, in 4 part types, covering the 5.9L V12 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2003 Aston Martin DB7, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. 13 parts of the 14 listed are Crankshaft Seal (6 parts), Oil (4 parts) and Crankshaft Repair Sleeve (3 parts). The other 1 part type covers the remaining 1 part.
The 2003 Aston Martin DB7 came with a single engine, the 5.9L V12, and every part is verified against it.
5 brands supply engine parts for the 2003 Aston Martin DB7, led by NATIONAL (4 parts), IDEMITSU (4 parts) and WJB / INMOTION PARTS (3 parts), plus 2 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2003 Aston Martin DB7. 1 part has it: NATIONAL 3909 (Crankshaft Seal). Each part number opens a page with every vehicle that part fits.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS99363 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| NATIONAL | 99363 | 🇺🇸 US 🇨🇦 CA | RearShaft Diameter: 3.625" | View on Amazon |
| WJB / INMOTION PARTS | WS99363 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
This table covers the sleeves used to restore a grooved crankshaft seal surface.
3 Crankshaft Repair Sleeve parts for the 2003 Aston Martin DB7 come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: BCA NS99363, NATIONAL 99363 and WJB / INMOTION PARTS WS99363.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 3909 | 🇺🇸 US 🇨🇦 CA | RearViton Type | View on Amazon |
| BCA | NS5277 | 🇺🇸 US 🇨🇦 CA | PTFE Rubber | View on Amazon |
| NATIONAL | 350823 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| NATIONAL | 5277 | 🇺🇸 US 🇨🇦 CA | PTFE Rubber | View on Amazon |
| WJB / INMOTION PARTS | WS3909 | 🇺🇸 US 🇨🇦 CA | RearViton Type | View on Amazon |
| WJB / INMOTION PARTS | WS5277 | 🇺🇸 US 🇨🇦 CA | PTFE Rubber Material | View on Amazon |
This table covers the front and rear seals that keep oil in at the crankshaft. 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.
6 Crankshaft Seal parts for the 2003 Aston Martin DB7 come from 3 brands — NATIONAL, WJB / INMOTION PARTS and BCA. The "Popular" part is NATIONAL 3909.
This group includes NATIONAL 3909, BCA NS5277 and NATIONAL 350823 and the remaining parts above.
Oil
Full Synthetic
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU | 30041116750 | 🇺🇸 US | Racing Engine Oil Full Synthetic 5W-401 Quart | View on Amazon |
| IDEMITSU | 30041116953 | 🇺🇸 US | Racing Engine Oil Full Synthetic 5W-405 Quart | View on Amazon |
Racing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU | 30018100750 | 🇺🇸 US | 10W30 Rotary Racing Oil1 Quart | View on Amazon |
| IDEMITSU | 30018101750 | 🇺🇸 US | 20W50 Rotary Racing Oil1 Quart | View on Amazon |
This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable.
4 Oil parts for the 2003 Aston Martin DB7 come from IDEMITSU.
The Full Synthetic section lists 2 options from IDEMITSU — full-synthetic oils. IDEMITSU 30041116750 is listed in this group.
The Racing section lists 2 options from IDEMITSU — grouped under the catalog's "Racing" designation — the notes column spells out what sets them apart. IDEMITSU 30018100750 is listed in this group.
Listed part numbers: IDEMITSU 30041116750, IDEMITSU 30041116953 and IDEMITSU 30018100750, plus the other parts above.
Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PF605G | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalSpin-On | View on Amazon |
This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.
This group shows a single part: ACDELCO PF605G.
Buying Engine Parts for a 2003 Aston Martin DB7
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Confirm you have the 5.9L V12 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 seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Crankshaft Seal and Oil .
Frequently Asked Questions
How many engine parts fit the 2003 Aston Martin DB7?
Our catalog currently lists 14 engine parts for the 2003 Aston Martin DB7 across 4 subcategories and 5 brands, covering the 5.9L V12 engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 2003 Aston Martin DB7?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What oil viscosity is listed for the 2003 Aston Martin DB7?
Oil rows on this page include SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
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 2003 Aston Martin DB7 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 2003 Aston Martin DB7?
Every part on this page is matched to the 5.9L V12 engine. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2003 Aston Martin DB7
Engine Parts for Other Aston Martin DB7 Years
Switch vehicle or jump to a subcategory
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.