will this fit my rotax 503 engine out of my 1999 skandic 500 wt? i dont think its an oversize piston. it has never been bored out.

I would think that if you are for sure a stock 72mm bore, it should work just fine. I have an aircraft 503 and I don't think there is any difference in the pistons, rings and intake/ exhaust gaskets. This kit worked perfectly for mine.

Will this fit my 1995 skidoo Rotax 503?

It's a bit of overkill for a snowmobile but it will fit

Rotax 503 Aircraft Engine Top End Piston Rebuild Kit Std

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Description

🚀 Elevate Your Rotax 503 – Rebuild Like a Pro, Fly Like a Boss!

READY FOR UPGRADE - Oversize piston options available to future-proof your engine rebuild and maximize power output.
OEM EXCEEDING QUALITY - Aftermarket pistons designed to surpass original manufacturer specs for enhanced strength and heat transfer.
COMPREHENSIVE OVERHAUL KIT - Includes pistons, dual rings, pins, circlips, and full gasket & crank seal set for a seamless top-end rebuild.
ADVANCED TEFLON MOLY COATING - Dual-layer ceramic anodized domes reduce friction and heat, delivering smoother runs and extended engine life.
PRECISION 72 MM STANDARD BORE - Engineered for perfect fit on all late-style Rotax 503 UL engines, ensuring peak performance and reliability.

The Rotax 503 Aircraft Engine Top End Piston Rebuild Kit features precision 72mm standard bore pistons with advanced Teflon moly and ceramic dome coatings. Designed for all late-style Rotax 503 UL engines, this comprehensive kit includes dual-ring pistons, pins, circlips, and a full overhaul gasket and seal set. Engineered to exceed OEM specifications, it ensures smoother operation, superior heat transfer, and durability, making it the ultimate upgrade for your aircraft engine rebuild.

Specifications

ASIN	B00M0N94QQ
Best Sellers Rank	#3,357,309 in Automotive ( See Top 100 in Automotive ) #2,268 in Powersports Engine Kits
Brand	Aerolite
Customer Reviews	4.6 4.6 out of 5 stars (4)
Date First Available	July 22, 2014
Is Discontinued By Manufacturer	No
Item Weight	4 pounds
Item model number	RTX503STD
Manufacturer	aerolite
Manufacturer Part Number	RTX503STD
Package Dimensions	12 x 6 x 6 inches

Reviews

Q**Q

Five Stars

Just what I needed at a great price.

21.10.2014

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$1123.93

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to British Virgin Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Rotax 503 Aircraft Engine Top End Piston Rebuild Kit Std Bore 72 Mm Coated

Description

Specifications

Reviews

Common Questions