KPMI, custom valve guide seals. PTFE
Solid PTFE; with metal band and choker spring. Stem diameter: 5/16" (0.311"). Valve guide diameter: 0.415". Over all length of seal: 0.517". Outside diameter of seal: 0.510". Kibblewhite Precision Machining custom valve stem seals are a quality product and suitable for any and all custom applications. Note: Below mentioned valve stem diameters are for reference only. - 36-84 B.T. = 3/8" (.3750") - 57-83 XL intake = 0.3090" - 57-83 XL exhaust = 0.3384" - 84-04 B.T.; 86-03 XL = 5/16" (.311") - 05-16 TCA/B; 04-22 XL; 08-12 XR = 7mm (.2760") - 02-17 V-Rod = 6mm (0.2345") - 17-24 M8 = 6mm (0.2345") Installation note: Valve guides made of PTFE require another fitment technique than ''regular'' or non-PTFE valve guides; this is due to the PTFE material. They are typically 0.020" (0.50mm) smaller than the valve stem and guide top they’re designed to fit. - The guide top should have a decent chamfer - The valve stem should have a decent chamfer; but a mylar seal installation protector / installation capsule (501823 green 5/16" / 0.3125"; 501824 Yellow 11/32" / 0.34375"; 501825 3/8" / 0.375") is advised for easier installation over the valve stem - You have to kind of roll the seal around the valve tip while exerting downward pressure to get it started - Don''t push directly on the very top of the seal to get it on to the guide; you’ll collapse the sealing area and tear the seal - A 12 point 12mm socket catches the shoulder of the guide pretty well and can be used to push
Ça dépend de ta localisation et de ce que tu as commandé. Voici les délais estimés :
- France : livraison en 3 à 7 jours ouvrés.
- Europe & international : livraison en 7 à 10 jours ouvrés.
Certains produits sont en stock, d’autres non. On travaille avec plusieurs niveaux de stock :
- En stock : expédition sous 24h / 48h.
- Stock européen : expédition sous 48h / 72h.
- Stock USA : expédition sous 3 à 5 semaines.
- Précommande avec ETA : expédition selon la date estimée.
- Sur commande avec délai spécifique : expédition en fonction de la disponibilité.
Estimated carrier transit times are:
- France: 1–5 business days
- Most European destinations: 5–10 business days
- Countries outside the European Union: delivery times may vary depending on the destination and customs clearance
The dispatch estimate and carrier transit time are separate.
Compatibility
You can verify compatibility in two ways:
- Use the vehicle selector on the product page to check whether the part matches your motorcycle.
- Review the fitment table for the full list of compatible models and years.
Some parts may require additional components, modifications or a specific existing setup. Always read the fitment notes and product description before ordering.
Still unsure? Contact us with:
- motorcycle make and model;
- model year;
- exact version or trim;
- current modifications;
- product reference or link.
Our team will help you confirm compatibility before ordering.
Eligible items may be returned within 30 days of delivery.
To be accepted, the item must be:
- unused and uninstalled;
- in its original condition;
- returned with its original packaging, labels and accessories.
Parts that have been installed, damaged or modified cannot be returned.
Please contact us before sending an item back. Returns sent without prior authorization may not be accepted.
Return shipping costs remain the customer’s responsibility unless the item received is incorrect, damaged or defective.
Droits de douane & taxes
European Union
Orders delivered within the European Union are shipped from France. No import duties are charged upon delivery.
Countries outside the European Union
Local VAT, customs duties and carrier clearance fees may apply. These charges are determined by the destination country and remain the customer’s responsibility.
Payment Options
We accept major credit and debit cards, PayPal and the installment payment methods displayed at checkout.
Eligible orders may be paid in 3 or 4 installments, subject to the payment provider’s approval and applicable limits.

