The 1968 Lotus Seven has 12 engine parts with verified fitment on this page — 4 part types and 6 brands, covering all 3 engine options (1.3L L4, 1.5L L4 and 997cc L4). Each part includes a manufacturer part number and application notes.
The engine on the 1968 Lotus Seven covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. The largest groups are Crankshaft Seal (5 parts), Crankshaft Repair Sleeve (4 parts) and Connecting Rod Bearing (2 parts). The other 1 part type covers the remaining 1 part.
The 1968 Lotus Seven was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
6 brands supply engine parts for the 1968 Lotus Seven, led by NATIONAL (3 parts), SCHAEFFLER (3 parts) and KING ENGINE BEARINGS (2 parts), plus 3 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1968 Lotus Seven. 1 part has it: WJB / INMOTION PARTS WS3393 (Crankshaft Seal). Each part number opens a page with every vehicle that part fits.
Camshaft Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 1.3L L4 | SH711S | 🇺🇸 US | Full Set | View on Amazon |
This table covers the Camshaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
One part is listed for the 1968 Lotus Seven — MAHLE / CLEVITE SH711S.
Connecting Rod Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KING ENGINE BEARINGS Fits: 1.5L L4 | CR410XP | 🇺🇸 US | Race bearings, Trimetal [Pmax Black]Set | View on Amazon |
| KING ENGINE BEARINGS Fits: 1.5L L4 | CR410XPX | 🇺🇸 US | SetTrimetal | View on Amazon |
This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
KING ENGINE BEARINGS supplies both parts for the 1968 Lotus Seven.
Listed part numbers: KING ENGINE BEARINGS CR410XP and KING ENGINE BEARINGS CR410XPX.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 1.3L L4 | 99237 | 🇺🇸 US | Rear | View on Amazon |
| SCHAEFFLER Fits: 1.3L L4 | SR3521 | 🇺🇸 US | Rear3.486 In Outside Diameter | View on Amazon |
| SCHAEFFLER Fits: 1.3L L4 | SS3474 | 🇺🇸 US | Front | View on Amazon |
| WJB / INMOTION PARTS Fits: 1.3L L4 | WS99237 | 🇺🇸 US | Rear | View on Amazon |
This table covers the sleeves used to restore a grooved crankshaft seal surface.
4 Crankshaft Repair Sleeve parts for the 1968 Lotus Seven come from 3 brands — SCHAEFFLER, NATIONAL and WJB / INMOTION PARTS.
Part numbers include NATIONAL 99237, SCHAEFFLER SR3521 and SCHAEFFLER SS3474, among others listed above.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular Fits: 1.3L L4 | WS3393 | 🇺🇸 US | RearViton Type | View on Amazon |
| BCA Fits: 1.3L L4 | NS3393 | 🇺🇸 US | RearViton Type | View on Amazon |
| NATIONAL Fits: 1.3L L4 | 3393 | 🇺🇸 US | RearViton Type | View on Amazon |
| NATIONAL Fits: 1.3L L4 | 3394 | 🇺🇸 US | Front | View on Amazon |
| SCHAEFFLER Fits: 1.3L L4 | SS3211 | 🇺🇸 US | 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 for the 1968 Lotus Seven come from 4 brands — NATIONAL, WJB / INMOTION PARTS, BCA and 1 other brand. The "Popular" part is WJB / INMOTION PARTS WS3393.
This group includes WJB / INMOTION PARTS WS3393, BCA NS3393 and NATIONAL 3393 and the remaining parts above.
Buying Engine Parts for a 1968 Lotus Seven
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.
- Match the engine first. Every engine 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 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 Crankshaft Repair Sleeve .
Frequently Asked Questions
How many engine parts fit the 1968 Lotus Seven?
Our catalog currently lists 12 engine parts for the 1968 Lotus Seven across 4 subcategories and 6 brands, covering all 3 engine options (1.3L L4, 1.5L L4 and 997cc L4). Each part is matched to the engine(s) it fits.
Do engine parts differ between 1968 Lotus Seven engines?
Yes. Every engine 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 engine problems on a 1968 Lotus Seven?
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 1968 Lotus Seven 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 1968 Lotus Seven?
First match the engine — each row shows which engine(s) the part fits. 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 1968 Lotus Seven
Engine Parts for Other Lotus Seven 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.