1966-73 Ford Mustang Single Bail Master Cylinder 1" Bore w/ Shelby Boss 429 Lid / 2227161 MASTER CYLINDER REPRODUCTION
Brand New Reproduction Style 2227161 Master Cylinder Lid
Correct. Detailed. Period-Accurate.
When you’re restoring a late-’60s to early-’70s Ford engine bay, the smallest details separate a good build from a truly authentic one. This 2227161 master cylinder lid is a precision reproduction designed to replicate the exact appearance of the original Ford Motor Company (FOMOCO) cap introduced in early 1969 production.
Factory-Correct for Early 1969–1972 Applications
Ford Part Number: C9AZ-2162-A (Zinc Finish)
Originally introduced in early 1969 production and used through the late 1972 model year, this cap faithfully reproduces the features found on genuine assembly-line components.
Two Distinct Factory Versions:
Early Version – Two breather vents on the lip of the cap
Late Version – Single breather vent on the lip
(Same Ford part number, updated vent configuration during production)
Early Version – Two breather vents on the lip of the cap
Late Version – Single breather vent on the lip
(Same Ford part number, updated vent configuration during production)
Both variations were used under the same C9AZ-2162-A designation—this lid captures the correct production-era details.
Embossed ESA Specification – No Decal Required
Unlike earlier caps that required an emissions sticker, this version is correctly embossed with the ESA specification, just as the factory produced them—eliminating the need for add-on decals and ensuring a clean, authentic appearance.
Tear Drop Lid with Raised Lettering
The signature tear drop design features properly raised lettering with meticulous attention to the original font.
Look closely and you’ll see one of the most overlooked details:
The “O” and the “N” in the stamping touch together — exactly like the original tooling from 1969. This is the level of precision concours restorers demand.
Why It Matters
Engine bay authenticity is judged on the details. Incorrect fonts, wrong vent configurations, or flat stamping immediately stand out. This reproduction master cylinder lid is engineered for restorers who expect OEM-correct markings, finish, and typography.
If you’re restoring a 1969–1972 Ford to factory specs, this is the cap that finishes the job properly.
About Us
Pirate Jack Hot Rod Restoration is your one-stop-shop for quality disc brake conversions, brake boosters, master cylinders, and proportioning valves. We specialize in performance brakes for late fullsize GM cars from 1955-70 and muscle cars from 1962-74, , Chevy, & Ford. Pirate Jack also carries a full line of parts for Street Rods & Custom Built cars, including pedal assemblies, and hard to find power boosters, GM Restoration Parts, disc brake kits, and suspension products. Check out our tech page for information like how to test a brake booster, how to hook up a proportioning valve, how to plumb my brake lines, how to test my master cylinder and a F.A.Q's on how to calculate pedal ratio. We offer FREE tech support on all our disc brake kits and booster conversion kits to take the guess work out of your job. Pirate Jack offers how to guides and instructional videos on our video page. We strive to give you 100% satisfaction and we sincerely want to help you stop your vehicle and install our kits safely.
Tech Support
We want your restoration to be easy! Before contacting us for technical support please make sure you followed the directions that came with your kit. If you did not receive instructions for your install you can send us an Ebay Message and we are happy to send you a set. We also have some instructional video's and other helpful support you may need. We give limited support on weekends and are available M-F 7:30-4:30 EST.
Shipping
Pirate Jack ships from Asheville NC, and we ship your disc brake conversion kits, master cylinders, brake boosters and other orders fast!! We are open Monday-Friday 8-4:00 pm EST. We usually ship your order within 2 business days of receiving your order, but it's not uncommon for us to ship the same day. See our map display for estimated shipping times. Most orders will ship UPS, smaller orders will ship via USPS flat rate box. Your order will be professionally and durably packed for its time in transit to you so we can give you the very best. We ship to the address provided by your paypal account, so if you wish for your order to go to an alternate address, please leave us this information in the NOTE section of your paypal payment at check out. We will email you a tracking number the day after your order leaves so you can follow it. In addition, you will receive a packing slip to check over your order. If there is ever any discrepancy, please contact us right away and we will reconcile it with you. We are firmly committed to providing you the best possible shipping cost and getting your order out of our door to yours as fast as we can!
Warranty
All products are guaranteed for ONE YEAR FROM DATE OF PURCHASE, to be free of defects in materials and workmanship. The warranty does not start at the date of installation but the date of purchase. All product replacements will be sent to you via standard mail.
Returns
Cash/Refund-30 Days (Your refund will include a 5% restocking fee if in it?s original packaging. If product is opened or mounted 20% restocking fee will apply. (If your item was shipped to you for FREE, the original shipping cost will be deducted from the refund amount.) Store Credit 30 Days (No restocking fee, less any deductions for damages, or original shipping) Exchange only 30 Days (Customer pays for shipping both ways) ****All items that shipped free will incur a 5% Stocking Fee Automatically. Shipping charges are not part of your refund and Pirate Jack is not responsible for the cost of shipping the items back and we do not send out call tags unless we have shipped you the wrong product. Credits will not be issued until the items have been shipped back to us in working condition. No returns on special order items like pre-bent line kits. If you no loner want the item you must ship back the item within 30 days and the original shipping will be deducted from your refund. All returns are subject to approval by the RETURNS Department No guarantee of your return is implied. We do not take exchanges or returns on product that has had fluid ran through them. (NO EXCEPTIONS)
