Wärtsilä 46 Spare Parts — Valve Seats, Guides, Liners, Bearings and Filters

Selection guide compiled by cBallast. 3-page PDF; the full content is on this page.

Brand

Wartsila

Subject

Wärtsilä 46 / VASA 46 engines

Document type

Selection guide

Reference

2026 edition

Issued

2026-10-06

Pages

Format

Web page and PDF

Replacement spare parts for Wärtsilä 46 and VASA 46 medium-speed engines (6L46 to 18V46): which components the catalogue covers — valve seats and guides, exhaust valves, cylinder liners, piston rings, main/con-rod/cam bearings, injection equipment, filters — and exactly what to state when requesting a quotation.

The engine family

The Wärtsilä 46 (originally VASA 46) is a medium-speed four-stroke diesel with a 460 mm bore, built in in-line and vee configurations — 6L46, 8L46, 9L46, 12V46, 16V46 and 18V46 — and used for propulsion and power generation on tankers, ferries, cruise ships and in land power plants. cballast.com supplies replacement (OEM-equivalent) spare parts for Wärtsilä 46 engines, including valve seats, valve guides, exhaust valves, cylinder liners, piston ring sets, main and connecting-rod bearings, camshaft bearings, injection pumps and nozzles, gaskets, thermostats, engine mounts and filters, with worldwide dispatch. Genuine Wärtsilä parts can be quoted on request through the same enquiry.

Catalogue coverage for Wärtsilä 46

Component	Catalogue entry	Notes for the enquiry
Valve seat	W46 valve seat	State inlet/exhaust and standard or oversize
Valve guide	W46 valve guide	Inlet/exhaust; quantity per head
Exhaust valve	W46 exhaust valve	Stellite-faced spindles quoted per OEM number
Cylinder liner	W46 cylinder liner	With/without anti-polishing ring per revision
Piston ring set	W46 piston ring set	Standard size; oversize on request
Main bearing	W46 main bearing	STD/undersize; state journal measurement if reground
Con-rod bearing	W46 con-rod bearing	As main bearings
Camshaft bearing	W46 cam bearing	Position per parts book
Injection pump	W46 injection pump	Fuel spec (HFO/MDO) and plunger size
Injector nozzle	W46 injector nozzle	OEM nozzle number from the old part
Head gasket	W46 head gasket	Per head; sold individually
Thermostat	W46 thermostat	HT/LT circuit and set point
Starting air valve	W46 starting air valve	Main or cylinder valve
Engine mount	W46 engine mount	Resilient element rating
Lube-oil filter	W46 lube-oil filter	Element or complete duplex insert
Fuel filter	W46 fuel filter	Micron rating per system stage
Turbocharger / cartridge	W46 turbocharger, CHRA cartridge	TC maker and frame (ABB/KBB/Napier) from the plate

Entries above are catalogue reference listings; each is confirmed against the OEM part number you supply before quotation, so the delivered part matches the engine's revision state. Related engines are covered separately: Wärtsilä 32 and Wärtsilä 38 / 50DF.

How to order — what to include in the enquiry

Engine designation and configuration: the full type from the nameplate, e.g. 6L46, 9L46, 12V46 (in-line L or vee V, and cylinder count).
Component and position: inlet or exhaust side for valves, seats and guides; cylinder number where relevant.
OEM part number from the parts catalogue or the old component, when available — it pins the revision exactly.
Size/condition: standard or oversize/undersize for seats, liners and bearings; new, OEM-equivalent or reconditioned acceptance.
Quantity and required delivery (port, yard or works, with the vessel's agent where applicable).

Quotations are answered within 24 hours with price, availability and lead time; dispatch is worldwide. Certificates (EN 10204 3.1, class certificates) are quoted on request — see the certificate guide.

Frequently asked questions

Where can I buy Wärtsilä 46 spare parts?: Replacement parts for Wärtsilä 46 engines — valve seats, guides, liners, bearings, rings, injection equipment and filters — can be ordered from cballast.com: request a quotation on the component page or by email, with worldwide dispatch.
Which Wärtsilä 46 variants do the parts fit?: The family covers 6L46, 8L46 and 9L46 in-line and 12V46, 16V46 and 18V46 vee engines; parts are matched to the exact variant and revision via the OEM part number you provide.
Are the parts genuine Wärtsilä or OEM-equivalent?: Catalogue listings are high-quality replacement (OEM-equivalent) parts; genuine Wärtsilä parts can be quoted through the same enquiry when the application or class requires them.
Can valve seats be supplied oversize?: Yes — seats and liners are quoted in standard and oversize variants; state the required oversize (for example +0.5 mm) or the measured seat pocket with the enquiry.
How fast is a quotation?: Within 24 hours, with price, availability, lead time and dispatch options to port, yard or works worldwide.

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Compiled by cBallast for identification and cross-reference. Part numbers, designations and trademarks belong to their respective manufacturers. Confirm ratings and dimensions against the manufacturer's current documentation and the nameplate of the installed equipment before ordering or installation.