This page lists 38 engine parts for the 1973 Lotus Elan, across 4 part types, covering the 1.6L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1973 Lotus Elan, 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. 37 parts of the 38 listed are Oil Filter (30 parts), Crankshaft Seal (5 parts) and Crankshaft Repair Sleeve (2 parts). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 1.6L L4 — the only engine offered in the 1973 Lotus Elan.
The most listed brands for 1973 Lotus Elan engine parts are FRAM (7 parts), FAMOUS BRAND (4 parts) and PUROLATOR (4 parts), plus 15 more brands. Quality grades include Economy, Standard Replacement and High Performance / Heavy Duty.
7 parts on this 1973 Lotus Elan page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WJB / INMOTION PARTS WS3393 (Crankshaft Seal) and CHAMP / LUBER-FINER PH561 (Oil Filter). Click any part number to see every vehicle that part fits.
Crankshaft Main Bearing Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER | WS3393 | 🇺🇸 US 🇨🇦 CA | Rear Main SealVITON TYPE | View on Amazon |
This table covers the gaskets that seal the Crankshaft Main Bearing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
This group shows a single part: ULTRA-POWER WS3393.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL | 99237 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| WJB / INMOTION PARTS | WS99237 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
This table covers the sleeves used to restore a grooved crankshaft seal surface.
2 Crankshaft Repair Sleeve parts are listed for the 1973 Lotus Elan, from NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: NATIONAL 99237 and WJB / INMOTION PARTS WS99237.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | WS3393 | 🇺🇸 US 🇨🇦 CA | RearViton Type | View on Amazon |
| BCA | NS3393 | 🇺🇸 US 🇨🇦 CA | RearViton Type | View on Amazon |
| NATIONAL | 3393 | 🇺🇸 US 🇨🇦 CA | RearViton Type | View on Amazon |
| NATIONAL | 3394 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| SCHAEFFLER | SS3211 | 🇺🇸 US 🇨🇦 CA | Rear10.16 mm Width | 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.
5 Crankshaft Seal parts are listed for the 1973 Lotus Elan, from NATIONAL, WJB / INMOTION PARTS, BCA and 1 other brand. WJB / INMOTION PARTS WS3393 carries the "Popular" badge.
Part numbers include WJB / INMOTION PARTS WS3393, BCA NS3393 and NATIONAL 3393, among others listed above.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMP / LUBER-FINER Popular | PH561 | 🇺🇸 US 🇨🇦 CA | Inside Diameter: 3/4-16 UNS Thread | View on Amazon |
| CHAMPION FILTER Popular | 41393T | 🇺🇸 US 🇨🇦 CA | TECHNICIANSPIN-ON | View on Amazon |
| CHAMPION FILTER | COS2870A | 🇺🇸 US 🇨🇦 CA | Spin-on | View on Amazon |
| FAMOUS BRAND | 500101509 | 🇺🇸 US 🇨🇦 CA | PROTUNE | View on Amazon |
| FAMOUS BRAND | R85342 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FAMOUS BRAND | R85393 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FAMOUS BRAND | 85393 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FRAM | FP2870A | 🇺🇸 US 🇨🇦 CA | PROSpin-On Filter | View on Amazon |
| FRAM | FPS2870A | 🇺🇸 US 🇨🇦 CA | PRO SyntheticSpin-On Filter | View on Amazon |
| FRAM | FE3600 | 🇺🇸 US 🇨🇦 CA | Spin-OnTough Guard or Synthetic Endurance | View on Amazon |
| FVP | R1393 | 🇺🇸 US 🇨🇦 CA | Cellulose Media | View on Amazon |
| PRO-TEC | PXL51393 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PUROLATOR | TL20252 | 🇺🇸 US 🇨🇦 CA | Class: WMedia Material: Cellulose | View on Amazon |
| PUROLATOR | L20252 | 🇺🇸 US 🇨🇦 CA | Class: CMedia Material: Cellulose | View on Amazon |
| PUROLATOR | PL20252 | 🇺🇸 US 🇨🇦 CA | Media Material: Enhanced Cellulose | View on Amazon |
| PUROLATOR | PBL20252 | 🇺🇸 US 🇨🇦 CA | Media Material: Synthetic | View on Amazon |
| VARIOUS MFR | PG252F | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
| VARIOUS MFR | PG252 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Popular | 51393XP | 🇺🇸 US 🇨🇦 CA | XP Extreme DutyCellulose Media | View on Amazon |
| FRAM | TG2870A | 🇺🇸 US 🇨🇦 CA | Tough GuardSpin-On | View on Amazon |
| FRAM | XG2870A | 🇺🇸 US 🇨🇦 CA | Ultra SyntheticSpin-On | View on Amazon |
| MOBIL | M1205A | 🇺🇸 US 🇨🇦 CA | Extended PerformanceStyle: Spin-On Lube Filter | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FRAM Popular | PH3600 | 🇺🇸 US 🇨🇦 CA | Extra GuardSpin-On | View on Amazon |
| FRAM Popular | PH2870A | 🇺🇸 US 🇨🇦 CA | Extra GuardSpin-On | View on Amazon |
| WIX Popular | 51393 | 🇺🇸 US 🇨🇦 CA | Cellulose Media | View on Amazon |
| ACDELCO | PF60 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalFilter Type: Spin On | View on Amazon |
| ACDELCO | PF60CL | 🇺🇸 US | Gold / ProfessionalClassic Design | View on Amazon |
| CHAMP / LUBER-FINER | PH561XL | 🇺🇸 US 🇨🇦 CA | XL Synthetic | View on Amazon |
| HENGST | H14W40 | 🇺🇸 US 🇨🇦 CA | Spin-on | View on Amazon |
| MAHLE / CLEVITE | OC110 | 🇺🇸 US 🇨🇦 CA | 118.00mm Height | 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.
30 Oil Filter parts are listed for the 1973 Lotus Elan, from FRAM, FAMOUS BRAND, PUROLATOR and 10 other brands. CHAMP / LUBER-FINER PH561 carries the "Popular" badge. Economy, High Performance / Heavy Duty and Standard Replacement are all represented, and Economy alone accounts for 18 parts.
Buying Engine Parts for a 1973 Lotus Elan
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 1.6L 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 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: Oil Filter and Crankshaft Seal .
Frequently Asked Questions
How many engine parts fit the 1973 Lotus Elan?
Our catalog currently lists 38 engine parts for the 1973 Lotus Elan across 4 subcategories and 18 brands, covering the 1.6L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 1973 Lotus Elan?
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 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 1973 Lotus Elan 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 1973 Lotus Elan?
Every part on this page is matched to the 1.6L L4 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 1973 Lotus Elan
Engine Parts for Other Lotus Elan 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.