Anybody have a source for parts for Sumitomo MK63 four piston calipers? I have two each on the front of my Datsun 510's and they are in need of rebuilding. I may have found rebuild kits, but I need 41.3 mm pistons and bleeder screws. Piston part # 41124-68200. Bleeder # 41129-A1280. These calipers are a bolt on upgrade for early Z's and were used on the Z and 510rally cars. They will fit inside the smaller 13 inch wheels. Wilwoods are too large. Thanks, Alan. alvspriteREMOVETHIS@aol.com

Eiji at Datsun Spirit was able to get rebuild kits for me, out of Japan. I don't know about getting new pistons... but you might give him a call.

See: http://www.datsunspirit.com/

Good luck,

Carl B.

OOPS. Correct part # for the pistons is 41128-68200. Here's a pic of the caliper. www.needmoreracing.com/ForSale/mk63FIAcaliper.jpg

If I am not mistaken those calipers were still listed in Nismo Catalogue 2007. Surelly they should have spares. I will confirm this tomorrow. Regards. m

Alan;

AP Racing Brakes lists a 41.3mm diameter caliper piston. Part number is Ø41.3mm CP3344-109. Might work if you can't obtain the Sumitomo pistons. You would need to check to see if the length dimension of the piston would work in you application.

AP Racing Brakes (http://www.apracing.com)

I called NISMO in Tennessee and placed an order for the caliper kits (seals, dust boots) on 3/3/8. Jessica said I may see them in 6-8 weeks. Pistons and bleeder screw were not available. I check out the AP site.

Thanks, Alan

Courtesy Nissan have the pistons listed on there site see

http://www.courtesyparts.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=41122-68200&Category_Code=s30_nismo_z-fia-brake

Datsun Spirit is out of stock on the kits and they'll let me know if they come in. I did place an order for the pistons from Courtesy Nissan in TX and got an order confirmation.

Thanks.

Got an email from Courtesy Nissan stating the pistons are no longer available.

Seal kits from Nissan Comp arrived today!

My pistons arrived from Nissan Comp the other day. I was told they were NLA, but some stock was found. Now I can rebuild both sets of calipers. I did aquire a spare set of Sumitomos from a racer in Texas who has moved on th Hondas. I found him thru an ad I placed on an SCCA production car forum. I have a set of vented rotor calipers on one car, and solid rotor calipers on the other. I'll have to investigate my rotor options, maybe switching one car to the solid rotor version. The solid disc part # may be written down, um, somewhere, in my car's notebooks.