11" Chrome Brake Booster & Finned 1" Bore Master Cylinder & Proportioning Valve

Demotor Performance
(78430)
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US $168.68
ApproximatelyS$ 220.62
or Best Offer
Condition:
New
More than 10 available3 sold
Breathe easy. Free shipping and returns.
Popular item. 3 have already sold.
Shipping:
Free USPS Ground Advantage®.
Located in: Ontario, California, United States
Delivery:
Estimated between Mon, 24 Nov and Fri, 28 Nov
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Seller pays for return shipping.
Coverage:
Read item description or contact seller for details. See all detailsSee all details on coverage
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eBay item number:165770463175
Last updated on Nov 10, 2025 17:48:01 SGTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
Demotor Performance
Manufacturer Part Number
R25257
OE/OEM Part Number
None
Type
Brake Booster & Master Cylinder
UPC
Does not apply
Category

Item description from the seller

About this seller

Demotor Performance

99.3% positive feedback•236K items sold

Joined Mar 2011
Usually responds within 24 hours
Since our founding, Demotor Performance has been committed to offering performance parts that combine superior quality with remarkable functionality. We understand that each upgrade or modification is ...
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Detailed Seller Ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Popular categories from this store

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Brakes & Brake PartsMaster CylinderValve CoverAir CleanerSteering ColumnSteering Wheel & ColumnSteering Wheel & Horn ButtonControl ArmsRadiator

Seller feedback (84,183)

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  • t***h (19)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Good buy , in better condition then described, box, NOT, bolts rattling around inside and falling out when arrived, some missing, seller stated they would try to assist me there, hope that comes through as this is second set of these I've purchased and the same thing happened with them, No success find pieces locally, Fastenal isn't selling to walk in anymore, go figure a business not in business to gen. public anymore?
    Fabricated Aluminum Tall Valve Covers w/o Hole For Chevy BBC 454 502 1965-1995 (#167544874050)
  • -***o (200)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Item is exactly as described. Arrived 2 days after shipped. Seller communication was excellent!!! This is an A+ Seller and I will shop with them again!!!
    For Ford 1932 Model B/BB/18 Front Grill Shell Smooth Top No Crank Hole Black (#156664584862)
  • l***a (804)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    As described / fast shipping / packaging was thin small scratches from bouncing around in box. Other than that good deal
    Ram Horn Chromed Exhaust Manifolds Header For Chevy SBC 283-400 (#157322286532)
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