This page lists 20 engine parts for the 1968 Triumph TR6, across 6 part types, covering the 2.5L L6 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1968 Triumph TR6, 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. Most of the listed parts are Crankshaft Seal (5 parts), Oil Filter (4 parts) and Piston Ring (4 parts). The other 3 part types cover the remaining 7 parts.
Every part on this page is matched to the 2.5L L6 — the only engine offered in the 1968 Triumph TR6.
The most listed brands for 1968 Triumph TR6 engine parts are HASTINGS MANUFACTURING (4 parts), NATIONAL (2 parts) and WJB / INMOTION PARTS (2 parts), plus 9 more brands. Quality grades include Standard Replacement and Economy.
1 part on this 1968 Triumph TR6 page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — NATIONAL 472397 (Crankshaft Seal). Click any part number to see every vehicle that part fits.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL | 99199 | 🇺🇸 US | Front0.563 IN Width | View on Amazon |
| WJB / INMOTION PARTS | WS99199 | 🇺🇸 US | Shaft Maximum Diameter (In): 2.0030000000000001 In | 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 1968 Triumph TR6, from NATIONAL and WJB / INMOTION PARTS.
This group includes NATIONAL 99199 and WJB / INMOTION PARTS WS99199.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 472397 | 🇺🇸 US | Nitrile | View on Amazon |
| BCA | NS472397 | 🇺🇸 US | Front | View on Amazon |
| SCHAEFFLER | SS3046 | 🇺🇸 US | Front3.01" O.D. X 0.31" Width | View on Amazon |
| SCHAEFFLER | SS3048 | 🇺🇸 US | Front3.01" O.D. X 0.38" Width | View on Amazon |
| WJB / INMOTION PARTS | WS472397 | 🇺🇸 US | Nitrile | 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 1968 Triumph TR6, from SCHAEFFLER, NATIONAL, BCA and 1 other brand. NATIONAL 472397 carries the "Popular" badge.
Part numbers include NATIONAL 472397, BCA NS472397 and SCHAEFFLER SS3046, among others listed above.
Expansion Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | MPE156BR | 🇺🇸 US | Brass | View on Amazon |
| MELLING | MPE156R | 🇺🇸 US | Steel | View on Amazon |
This table covers the Expansion plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.
2 Expansion Plug parts for the 1968 Triumph TR6 come from MELLING.
Listed part numbers: MELLING MPE156BR and MELLING MPE156R.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PUROLATOR | L10222 | 🇺🇸 US 🇨🇦 CA | TR250 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE | OX16D | 🇺🇸 US | Cartridge | View on Amazon |
| MANN | H10182N | 🇺🇸 US | View on Amazon | |
| WIX | 51313 | 🇺🇸 US | without Oil Cooler | 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.
4 Oil Filter parts are listed for the 1968 Triumph TR6, from PUROLATOR, MAHLE / CLEVITE, MANN and 1 other brand.
In the Economy grade, PUROLATOR supplies 1 part: the catalog's value-priced group. A representative part number is PUROLATOR L10222.
The Standard Replacement section lists 3 options from MAHLE / CLEVITE, MANN and WIX — built to original-equipment specification. MAHLE / CLEVITE OX16D is listed in this group.
Part numbers include PUROLATOR L10222, MAHLE / CLEVITE OX16D and MANN H10182N, among others listed above.
Piston Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS MANUFACTURING | 6817 | 🇺🇸 US | Full SetPlain Cast Top Ring | View on Amazon |
| HASTINGS MANUFACTURING | 2C6817 | 🇺🇸 US | Full SetChrome Top Ring | View on Amazon |
| HASTINGS MANUFACTURING | 2C6817S | 🇺🇸 US | 1 Cylinder SetChrome Top Ring | View on Amazon |
| HASTINGS MANUFACTURING | 6817S | 🇺🇸 US | 1 Cylinder SetFor 2 Ring Piston | View on Amazon |
This table covers the rings that seal each piston to the cylinder wall.
4 Piston Ring parts for the 1968 Triumph TR6 come from HASTINGS MANUFACTURING.
This group includes HASTINGS MANUFACTURING 6817, HASTINGS MANUFACTURING 2C6817 and HASTINGS MANUFACTURING 2C6817S and the remaining parts above.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | VS26040 | 🇺🇸 US | View on Amazon | |
| MAHLE / CLEVITE | VS30029 | 🇺🇸 US | Cork-Rubber | View on Amazon |
| VICTOR REINZ | 711529400 | 🇺🇸 US | View on Amazon |
This table covers the gaskets that seal the valve cover to the cylinder head. 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.
3 Valve Cover Gasket parts are listed for the 1968 Triumph TR6, from FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.
This group includes FEL-PRO VS26040, MAHLE / CLEVITE VS30029 and VICTOR REINZ 711529400.
Buying Engine Parts for a 1968 Triumph TR6
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 2.5L 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 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 Filter .
Frequently Asked Questions
How many engine parts fit the 1968 Triumph TR6?
Our catalog currently lists 20 engine parts for the 1968 Triumph TR6 across 6 subcategories and 12 brands, covering the 2.5L L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 1968 Triumph TR6?
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 Triumph TR6 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 Triumph TR6?
Every part on this page is matched to the 2.5L L6 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 1968 Triumph TR6
Engine Parts for Other Triumph TR6 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.