Used C3OE Harmonic Balancer

    • Official Post

    This used C3OE Hipo harmonic balancer is back on Ebay again with a revised description and a Buy-It-Now of $550.00:

    1965 Ford Mustang 289K Hi-Po Balancer C30E-6316 Original #6039 | eBay

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post

    The listing for this used C3OE Hipo harmonic balancer was ended by the seller June 17, 2023 with the following explanation "This listing was ended by the seller because there was an error in the listing".

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post

    This used C3OE Hipo harmonic balancer is back on Ebay again with a revised description and a Buy-It-Now of $550.00:

    1963 Ford 289K Hi-Po Balancer C30E-6316 Original Cobra Fairlane L3 Date #6039 | eBay

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "wunderwerks" with a Buy-It-Now of $335.00:

    Not building any more cars. Clearing my shelves of parts that I've had for decades. This is a clean dampner pulley that is correct for the early 289 Cobras and Fairlanes. It is also the correct pulley for Mustang HIPOs and Shelby unless you require the exact date codes (good luck) for your build. Be sure to check my other listings.

    FORD 289 HiPO K-CODE HARMONIC BALANCER C3OE Dampner Pulley Cobra Fairlan Mustang | eBay

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post
    Quote from C6ZZKGT

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "wunderwerks" with a Buy-It-Now of $335.00:

    Not building any more cars. Clearing my shelves of parts that I've had for decades. This is a clean dampner pulley that is correct for the early 289 Cobras and Fairlanes. It is also the correct pulley for Mustang HIPOs and Shelby unless you require the exact date codes (good luck) for your build. Be sure to check my other listings.

    FORD 289 HiPO K-CODE HARMONIC BALANCER C3OE Dampner Pulley Cobra Fairlan Mustang | eBay

    -Fred-

    This used C3OE Hipo harmonic balancer sold August 2, 2023 on Ebay for $335.00.

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post
    Quote from C6ZZKGT

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "hertz1966" with a Buy-It-Now of $400.00:

    This is an original Ford 289 HiPo High Performance 289 engine harmonic balancer that was is for 1963 - 1967 OEM hipo k-code 289 harmonic balancer.
    This would be for hipo 289 Cobra, Fairlane or mustang C3OE.

    Date code stamp is L3 (November 1963) Does have light pitting, no hammer marks on back side.


    FORD 289 HiPO K-CODE HARMONIC BALANCER C3OE SMALL BLOCK 289 ORIGINAL | eBay

    -Fred-

    The listing for this used C3OE Hipo harmonic balancer was ended by the seller December 9, 2023 with the following explanation "This listing was ended by the seller because the item is no longer available".

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "jandj-autoparts-ohio" with a starting bid of $100.00:

    HI-PO BALLANCER 289 ... CHECK MY OTHER LISTINGS PARTING OUT HI-PO MOTOR

    Ford 289 Hi-Po BALANCER FAIRLANE GT40 COBRA FALCON K CODE MUSTANG HIPO | eBay

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post
    Quote from C6ZZKGT

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "jandj-autoparts-ohio" with a starting bid of $100.00:

    HI-PO BALLANCER 289 ... CHECK MY OTHER LISTINGS PARTING OUT HI-PO MOTOR

    Ford 289 Hi-Po BALANCER FAIRLANE GT40 COBRA FALCON K CODE MUSTANG HIPO | eBay

    -Fred-

    This used C3OE Hipo harmonic balancer sold December 17, 2023 on Ebay for $725.05 with 49 bids from 6 bidders.

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post

    This used C3OE Hipo harmonic balancer sold December 25, 2023 on Ebay for $495.00.

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "bobmannel" with a starting bid of $300.00:

    289 HiPo balancer. Impossible to find in this condition. Just a couple nicks as seen in photos. Date code is 3F which is June 1963. Good for late 1963 or early 1964 289 HiPo. Rubber in excellent condition. Casting number C3OE-B. Almost no timing chain cover seal grooving.

    1963/64 289 HiPo harmonic vibration damper balancer C3OE-B dated 3F | eBay

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post
    Quote from C6ZZKGT

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "bobmannel" with a starting bid of $300.00:

    289 HiPo balancer. Impossible to find in this condition. Just a couple nicks as seen in photos. Date code is 3F which is June 1963. Good for late 1963 or early 1964 289 HiPo. Rubber in excellent condition. Casting number C3OE-B. Almost no timing chain cover seal grooving.

    1963/64 289 HiPo harmonic vibration damper balancer C3OE-B dated 3F | eBay

    -Fred-

    This used C3OE Hipo harmonic balancer sold March 28, 2025 on Ebay for $446.00 with 4 bids from 2 bidders.

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "mustangmasters428" with a starting bid of $1,395.00:

    Here we have a 1965 66 or 67 hard to find factory original C3OE 289 High Performance Harmonic Balancer. The Ford engineers felt it necessary to add the extra balancing to their 271 horsepower 289 Hipo 4-barrel powerhouse. These hard charging motors received heavy duty rods and special crankshaft which demanded a thicker, heavy-duty balancer for this high revving motor. A signature item of all 289 HiPo's, Ford also carried this design into their 68 J code 302 4v's which were used in GT 350 Shelby's changing nothing but the part number and adding proper timing marks. This item is also correct for a 68 GT 350 Shelby, and would make a good spare if not replacing your original unit.

    This part is an original C3OE not the later C8OE-6316-A offered by Ford as a service replacement part after they depleted their stock of original C5OE's. Coming to you in good used condition free of gouges or stripped threads and rubber in good shape, we feel this unit will make a great addition or replacement for your worn or tattered original and will bolt right on with no modifications and perform as originally designed. Whether as a spare, or as a replacement to get your car on the road, don't let this one get away as these are getting hard to find!

    1965 66 C3OE Ford 289 High Performance Balancer 289 HiPo Balancer | eBay

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

    • Official Post
    Quote from C6ZZKGT

    Here is an Ebay auction for a used C3OE Hipo harmonic balancer by Ebay member "mustangmasters428" with a starting bid of $1,395.00:

    Here we have a 1965 66 or 67 hard to find factory original C3OE 289 High Performance Harmonic Balancer. The Ford engineers felt it necessary to add the extra balancing to their 271 horsepower 289 Hipo 4-barrel powerhouse. These hard charging motors received heavy duty rods and special crankshaft which demanded a thicker, heavy-duty balancer for this high revving motor. A signature item of all 289 HiPo's, Ford also carried this design into their 68 J code 302 4v's which were used in GT 350 Shelby's changing nothing but the part number and adding proper timing marks. This item is also correct for a 68 GT 350 Shelby, and would make a good spare if not replacing your original unit.

    This part is an original C3OE not the later C8OE-6316-A offered by Ford as a service replacement part after they depleted their stock of original C5OE's. Coming to you in good used condition free of gouges or stripped threads and rubber in good shape, we feel this unit will make a great addition or replacement for your worn or tattered original and will bolt right on with no modifications and perform as originally designed. Whether as a spare, or as a replacement to get your car on the road, don't let this one get away as these are getting hard to find!

    1965 66 C3OE Ford 289 High Performance Balancer 289 HiPo Balancer | eBay

    -Fred-

    This used C3OE Hipo harmonic balancer received no bids by November 23,2025 and therefore did NOT sell.

    -Fred-

    65 Koupe early San Jose Phoenician Yellow 4 speed
    66 GT Koupe Dearborn Blue 4 speed
    66 KGT San Jose fastback pony interior Silver Frost 4 speed
    64 Falcon sedan delivery 289 4 speed
    65 Ranchero 289 4 speed
    66 Corvette roadster 427/425 4 speed

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