Precision Engineered
Supertech Black Nitrided Intake Valve Set (6 pcs) for BMW M20B25 – 43 mm (+1 mm Oversize)
169,95 €
Available to order — estimated delivery: 3–5 weeks
Not held in stock at Ge-Tech Engineering. This item is ordered from our supplier after you place your order. Delivery may vary depending on supplier availability and customs clearance.
Questions about delivery times? Contact us and we will gladly help.
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Delivery Estimates
Description
Set of six Supertech BMIVN-1085 Black Nitrided intake valves for the BMW M20 B25 2.5L 12V engine. Each valve has a 43 mm head (+1 mm oversize over the standard 42 mm), a 6.97 mm stem and a 102.50 mm overall length. One set covers all six intake valves of the M20B25.
Technical specifications
| Manufacturer | Supertech |
|---|---|
| Part number | BMIVN-1085 (set of 6) |
| Quantity | 6 valves |
| Vehicle make | BMW |
| Engine | M20 B25 2.5L 12V |
| Model series | E30 / E34 — 325 / 525 |
| Supplier-listed model years | 1977–1992; confirm exact engine fitment |
| Valve type | Intake |
| Finish | Black Nitrided |
| Head diameter | 43 mm (+1 mm oversize) |
| Stem diameter | 6.97 mm |
| Overall length | 102.50 mm |
Fitment
For BMW M20 B25 2.5L 12V applications. The 43 mm head is 1 mm oversize compared with the standard intake valve, so the valve seats must suit the larger head diameter. Confirm your engine code, valve dimensions and compatibility with the valve guides, seats and keepers before ordering; model year alone does not establish compatibility.
Recommended accessories
Valve keepers: KPR-VW7-T (3 grooves), available separately.
Manufacturing & Black Nitrided finish
Supertech valves are forged, precision-machined, heat-treated and ground before receiving a Superfinish surface treatment. The Black Nitrided treatment covers the entire valve and is designed to improve surface hardness and wear resistance while reducing friction between the stem and valve guide.
Image for illustration: the photograph shows an assortment of Supertech valves, not the contents of the supplied set. Valve keepers, locks and guides are not included.
