Description
Top-End Gasket Set
Everything to reseal a turbo 4G15T cylinder head in one box, built with Japanese OE-grade Sowa gaskets for a leak-free head rebuild.
Top setGasket coverage
Sowa - JapanOE-grade maker
4G15TTurbo Colt / Ralliart
1468 ccEngine displacement
Overview
A "top set" gasket kit from Sowa, a Japanese OE-grade gasket manufacturer, for resealing the cylinder head of the turbocharged Mitsubishi 4G15T (Colt CZT / Colt Ralliart, 1468 cc). A top set covers the upper end of the engine only - typically the head gasket plus the top-end seals and gaskets needed to refit a cylinder head - so you can do a head-gasket job without buying a full overhaul set.
Aimed at owners doing a head-gasket replacement or top-end refresh on a boosted 4G15T. Sowa is a Japanese-market, OE-grade alternative to genuine Mitsubishi gaskets. Exact box contents and head-gasket material vary by supplier and SKU - confirm the contents below before ordering if your build needs a specific head-gasket type or thickness.
Specifications
Set typeTop set (upper-engine / cylinder-head gasket set); bottom-end gaskets not included
ManufacturerSowa (Sowa Industries Co. Ltd., Japanese OE-grade gasket maker)
Engine applicationMitsubishi 4G15T turbo - Colt CZT / Colt Ralliart, 1468 cc, 75.5 x 82.0 mm
Valve train16-valve MIVEC, turbocharged (confirm DOHC vs SOHC for your exact car)
Head gasket includedYes - head gasket is the core of any top set (confirm material and thickness)
Head gasket materialconfirm (OE turbo 4G15T head gasket is multi-layer steel / MLS - confirm Sowa's version)
Valve stem seals includedconfirm (some "top / head" sets exclude them - verify for this SKU)
Other top-end gaskets / o-ringsconfirm exact contents (cam-cover, manifold gaskets, seals)
Sowa part numberconfirm; OE cross-refs - head gasket 1005A862, full head-gasket set 1000A272 / 50294300 (confirm applicability)
What's in the box
- confirm exact contents - a 4G15T top set typically comprises: cylinder head gasket
- valve stem seals
- rocker (cam) cover gasket
- intake manifold gasket
- exhaust manifold gasket
- assorted head o-rings / seals
Fitment
ApplicationMitsubishi 4G15T (turbo)
InstallHead-gasket job: clean and check head/block flatness, torque head bolts in the 4G15T factory sequence and spec (torque-to-yield bolts - replace if required), and always fit a fresh gasket set on reassembly.
The 4G15 family has several variants (SOHC 12v, SOHC/DOHC 16v, MIVEC turbo) - confirm this set matches your exact engine and head-gasket thickness before ordering.
Best suited for
Head gasket jobs
Turbo 4G15T rebuilds
Top-end reseal
Top set only - no bottom-end gaskets (sump, crank/oil seals); use a full overhaul set for a complete rebuild. Exact contents and head-gasket material for this SKU are unconfirmed - verify before relying on it for a build.
Fast dispatchShips in 24–48h
Genuine productAuthentic Sowa
Easy returns10-day returns, unused items
Fitment helpWe'll confirm before you buy
Returns
Return within 7 days of purchase, provided the item is unused and in its original condition and packaging. Taxes are non-refundable.
We can’t take back parts that have been fitted or modified, unsealed electrical components, ECUs and sensors, opened gaskets, seals and o-rings, or clearance items. Parts we order in specifically for you can’t be returned for change of mind — we’ll tell you before you order if yours is a special order.
If a part is faulty, damaged in transit or isn’t what you ordered, we’ll put it right and cover the return shipping.
Please contact us before returning anything. Full terms are in our Refund policy.
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