Pay in installments of $10.50 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Supertech Exhaust Valve | Inconel | Single Groove | BMW S42/M42/M50/S50/M52/S52/M54 (31.5mm)Supertech Performance BMEVI 1031S BMW S42 M42 M50 S50 M52 S52 M54 Exhaust valve Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. Supertech offers their valves in either chrome coating, used in
Supertech Performance BMEVI-1031S BMW S42 / M42 / M50 / S50 / M52 / S52 / M54 Exhaust valve
- Head Diameter - 31.50mm (+1.0 over)
- Length - 105.65mm
- Material - Inconel
- Stem Diameter - 5.96mm
Supertech High Performance Race Engine Valves features:
- The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum)
- Surface finish is smoother than with chromed stems, having less friction between stem and guide.
- Valve seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats).
- Higher rpm's engines take full advantage of all previous features. The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide friction.
- The nitrided layer is adhered to the base material at a microscopic level, so does not"flake" or brake when the valves bend due to impacts with the pistons.
- The Black Nitride applies to the whole valve while the chrome coating is only applied to the stem.
Fits:
M50TU |
||||||||
M50TU |
||||||||
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 13 reviews
Sort
Product Reviews
★★★★★ 5
The price
Color: Black Watch-G5010
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
★★★★★ 5
Outstanding Watch — Style Meets Value!
Color: Black Watch-G5010
I’m so impressed with this OLEVS watch! From the moment my husband put it on, he said it felt comfortable, lightweight, and classy — exactly what he wanted in a dress watch. The minimalist design is sleek and modern, and every time he wears it someone compliments how elegant it looks, especially for the price.
The quartz movement keeps time accurately, and the waterproof feature gives peace of mind for everyday wear — and even rainy days. For a watch this affordable, it feels polished and much more expensive than it actually is.
If you’re looking for an everyday minimalist watch that doubles as a dress piece, this one truly delivers great quality and style at a stellar price point — absolutely 5 stars!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 5
OLEVS Men’s Watches Waterproof Dress Minimalist
Color: BlueFace-G5010
I got this watch for my husband, and it fits him perfectly. He’s retired police officer but still carries himself sharp, and this watch matches that classic, put-together look.
The blue face is rich and eye-catching without being flashy. The Roman numerals and silver detailing give it a timeless, elegant style. It looks much more expensive than it is.
The black leather-style band is comfortable and fits well. It’s lightweight enough for everyday wear but still feels solid and well made. The day and date feature is clear and easy to read, which is a nice practical touch.
Whether he’s dressed up or just heading out casually, this watch pulls everything together. It’s a great combination of classic style and everyday function, that’s easy to set up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
★★★★★ 1
Runs small
Color: Silver Watch-G5010
Runs small
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 5
Nice basic watch
Color: Black Watch-G5010
My father-in-law does not like new technology so when I saw this wat I knew he'd love it. It is your basic watch, works well and it's waterproof so very helpful as he fishes a lot! The overall appearance of the watch is really elegant; the watch itself is thinner than most which gives it a really nice look and I was really surprised at how good the quality is on it. It comes with the little tool to tack links out so you can adjust the fit and I feel like it looks nicer than his more expensive watches. So far, it's kept time well and he's been extremely happy with it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
recommand products
Vertx Go Pack VTX5001
54.99
6871L-4129D LG TV Module, T-Con Board, 6870C-0514F, 6870C-0514J, LC650LQD-GHP3, 65EG9600-UA, 65EG9600-UA.AUSYLJR
31.95
Supertech Toyota 1GR-FE 30.5x5.47x105.90mm Dish Inconel Exhaust Valve - Single (Drop Ship Only)
54.99
Bravo Torsion IWB (Inside Waistband) Right Hand Holster Glock 43,43X,43X MOS (BC20-1028)
36.99
Perfecting Foundation SPF17/PA+ 35ml
125.00