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Dorman 678-154 Flywheel Bolts - Thread Size 7/16-20; Thread Length 0.900 In.
FEATURES:
This item may interchange to the following part numbers from other brands. This is provided for reference only and does not guarantee that the part your are buying is identical to the part numbers from the brands listed below. To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.
Additional Specifications: OEM Interchange: B8AZ6379A, F0TZ6379A, F1ZZ6379A, 12337973, 558805, 6030536, 839756, 94146578 BODY DIA (Inch): FLYWHEEL BOLT Fits what vehicles: 1968-1970 Ford Falcon, 1968-1970 Ford Mustang, 1968 Ford Ranchero, 1968 Ford Torino, 1968 Mercury Comet, 1968 Mercury Montego, 1969-1982 Chevrolet Corvette, 1970-1975 Chevrolet Bel Air, 1970-1996 Chevrolet Caprice, 1970-1973 Chevrolet Chevelle, 1984-1996 Chevrolet Corvette, 1970-1987 Chevrolet El Camino, 1970-1985 Chevrolet Impala, 1970 Chevrolet Kingswood, 1970-1988 Chevrolet Monte Carlo, 1970 Chevrolet Townsman, 1970-1977 Ford Maverick, 1973 Ford Mustang, 1971-1977 Mercury Comet, 1971-1972 Chevrolet Biscayne, 1972 Chevrolet Kingswood, 1972 Chevrolet Townsman, 1972-1974 American Motors Ambassador, 1972-1976 American Motors Gremlin, 1972-1977 American Motors Hornet, 1972-1974 American Motors Javelin, 1972-1977 American Motors Matador, 1972 Chevrolet Brookwood, 1973-1974 Ford Ranchero, 1973-1974 Ford Torino, 1973-1974 Mercury Montego, 1973-1974 Chevrolet Blazer, 1973-1974 Chevrolet C10 Pickup, 1973-1986 Chevrolet C10 Suburban, 1973-1974 Chevrolet C20 Pickup, 1973-1986 Chevrolet C20 Suburban, 1973-1974 Chevrolet C30 Pickup, 1973-1974 Chevrolet G10 Van, 1973-1974 Chevrolet G20 Van, 1973-1974 Chevrolet K10 Pickup, 1973-1986 Chevrolet K10 Suburban, 1973-1974 Chevrolet K20 Pickup, 1973-1986 Chevrolet K20 Suburban, 1973-1974 Chevrolet K30 Pickup, 1973-1976 Chevrolet Laguna, 1973-1983 Chevrolet Malibu, 1973-1974 Chevrolet P10 Van, 1973-1977 Ford Bronco, 1973-1974 Ford Country Sedan, 1973-1974 Ford Country Squire, 1973-1974 Ford Custom 500, 1973-1974 Ford Galaxie 500, 1973-1974 Ford Gran Torino, 1973-1974 Ford LTD, 1973-1974 Ford Ranch Wagon, 1973-1974 GMC C15/C1500 Pickup, 1973-1974 GMC C15/C1500 Suburban, 1973-1974 GMC C25/C2500 Pickup, 1973-1974 GMC C25/C2500 Suburban, 1973-1974 GMC C35/C3500 Pickup, 1973-1974 GMC G15/G1500 Van, 1973-1974 GMC G25/G2500 Van, 1973-1974 GMC G35/G3500 Van, 1973-1998 GMC Jimmy, 1973-1974 GMC K15/K1500 Pickup, 1973-1974 GMC K15/K1500 Suburban, 1973-1974 GMC K25/K2500 Pickup, 1973-1974 GMC K25/K2500 Suburban, 1973-1974 GMC K35/K3500 Pickup, 1973-1974 GMC P15/P1500 Van, 1973-1977 GMC Sprint, 1973 Mercury Colony Park, 1973-1974 Mercury Cougar, 1973 Mercury Marquis, 1973 Mercury Monterey, 1974 Chevrolet G30 Van, 1974 Chevrolet P30 Van, 1977-1979 Ford Ranchero, 1974 GMC P35/P3500 Van, 1975-1986 Chevrolet C10, 1975-1986 Chevrolet C20, 1975-1986 Chevrolet C30, 1975-1995 Chevrolet G10, 1975-1995 Chevrolet G20, 1975-1996 Chevrolet G30, 1975-1986 Chevrolet K10, 1975-1986 Chevrolet K20, 1975-1986 Chevrolet K5 Blazer, 1975-1980 Chevrolet P10, 1975-1989 Chevrolet P20, 1975-1998 Chevrolet P30, 1980-1996 Ford Bronco, 1975-1981 Ford Granada, 1977-1986 Ford LTD, 1979-1982 Ford Mustang, 1975-1978 Ford Mustang II, 1975-1978 GMC C15, 1975-1978 GMC C15 Suburban, 1975-1978 GMC C25, 1975-1978 GMC C25 Suburban, 1975-1978 GMC C35, 1975-1978 GMC G15, 1975-1978 GMC G25, 1975-1978 GMC G35, 1975-1978 GMC K15, 1975-1978 GMC K15 Suburban, 1975-1978 GMC K25, 1975-1978 GMC K25 Suburban, 1975-1978 GMC P15, 1975-1978 GMC P25, 1975-1978 GMC P35, 1977-1981 Mercury Cougar, 1975-1980 Mercury Monarch, 1976-1981 Buick Century, 1976-1986 Buick LeSabre, 1976-1984 Buick Regal, 1976-1979 Buick Skylark, 1976-1985 Cadillac Seville, 1976-1997 Chevrolet Camaro, 1976-1979 Chevrolet Nova, 1976-1977 Chevrolet Vega, 1976-1984 Oldsmobile 98, 1976-1992 Oldsmobile Custom Cruiser, 1976-1981 Oldsmobile Cutlass, 1976-1980 Oldsmobile Cutlass Salon, 1976-1988 Oldsmobile Cutlass Supreme, 1976 Oldsmobile Cutlass Tiara, 1976-1985 Oldsmobile Delta 88, 1976-1979 Oldsmobile Omega, 1976-1977 Oldsmobile Starfire, 1976-1985 Oldsmobile Toronado, 1976-1977 Pontiac Astre, 1976-1986 Pontiac Bonneville, 1976-1981 Pontiac Catalina, 1976-1997 Pontiac Firebird, 1976-1981 Pontiac Grand LeMans, 1976-1987 Pontiac Grand Prix, 1976-1978 Pontiac Grand Safari, 1976-1981 Pontiac LeMans, 1976-1978 Pontiac Sunbird, 1976-1977 Pontiac Ventura, 1977-1989 Buick Electra, 1977-1983 Buick Estate Wagon, 1988-1990 Buick LeSabre, 1986-1987 Buick Regal, 1977-1985 Buick Riviera, 1977-1986 Chevrolet K30, 1977-1979 Ford LTD II, 1977-1981 Ford Thunderbird, 1977-1978 GMC K35, 1977-1979 Pontiac Phoenix, 1978-1979 American Motors AMX, 1978-1979 American Motors Concord, 1978-1979 American Motors Pacer, 1994-1996 Chevrolet Impala, 1978-1981 Ford Fairmont, 1978-1987 GMC Caballero, 1979-1981 Mercury Marquis, 1978-1981 Mercury Zephyr, 1978-1984 Oldsmobile Cutlass Calais, 1978-1980 Pontiac Grand Am, 1979 American Motors Spirit, 1979-1984 Cadillac DeVille, 1979-1985 Cadillac Eldorado, 1979-1986 Cadillac Fleetwood, 1979-1986 GMC C1500, 1979-1986 GMC C1500 Suburban, 1979-1986 GMC C2500, 1979-1986 GMC C2500 Suburban, 1979-1986 GMC C3500, 1979-1995 GMC G1500, 1979-1995 GMC G2500, 1979-1996 GMC G3500, 1979-1986 GMC K1500, 1979-1986 GMC K1500 Suburban, 1979-1986 GMC K2500, 1979-1986 GMC K2500 Suburban, 1979-1986 GMC K3500, 1979-1980 GMC P1500, 1979-1989 GMC P2500, 1979-1998 GMC P3500, 1979-1981 Mercury Capri, 1979-1981 Mercury Grand Marquis, 1980-1983 Ford E-100 Econoline, 1980-1983 Ford E-100 Econoline Club Wagon, 1980-1996 Ford E-250 Econoline, 1980-1991 Ford E-250 Econoline Club Wagon, 1980-1996 Ford E-350 Econoline, 1980-1996 Ford E-350 Econoline Club Wagon, 1980-1983 Ford F-100, 1980-1996 Ford F-150, 1980-1997 Ford F-250, 1980-1997 Ford F-350, 1988-1999 GMC C1500, 1988-1999 GMC C2500, 1988-1999 GMC C3500, 1988-1999 GMC K1500, 1988-1999 GMC K2500, 1988-1999 GMC K3500, 1980-1983 Jeep Cherokee, 1980-1986 Jeep CJ7, 1980-1986 Jeep J10, 1980-1983 Jeep Wagoneer, 1980 Lincoln Continental, 1980-1981 Lincoln Mark VI, 1980 Lincoln Versailles, 1980-1983 Oldsmobile Cutlass Cruiser, 1985-1987 Oldsmobile Cutlass Salon, 1981-1985 Jeep Scrambler, 1981 Lincoln Town Car, 1983-1986 Pontiac Parisienne, 1984-1996 Ford E-150 Econoline, 1984-1996 Ford E-150 Econoline Club Wagon, 1992-1999 GMC C1500 Suburban, 1992-1999 GMC C2500 Suburban, 1992-1999 GMC K1500 Suburban, 1992-1999 GMC K2500 Suburban, 1984-1986 Jeep Grand Wagoneer, 1993-1996 Cadillac Fleetwood, 1985-1998 Chevrolet Astro, 1987-1998 Chevrolet Blazer, 1985-1998 GMC Safari, 1987-1992 Cadillac Brougham, 1987 Chevrolet R10, 1987-1988 Chevrolet R10 Suburban, 1987-1988 Chevrolet R20, 1987-1988 Chevrolet R20 Suburban, 1987-1988 Chevrolet R30, 1987 Chevrolet V10, 1987-1988 Chevrolet V10 Suburban, 1987 Chevrolet V20, 1987-1988 Chevrolet V20 Suburban, 1987-1988 Chevrolet V30, 1987-1991 Ford LTD Crown Victoria, 1995 Ford Mustang, 1987 GMC R1500, 1987-1991 GMC R1500 Suburban, 1987-1989 GMC R2500, 1987-1991 GMC R2500 Suburban, 1987-1991 GMC R3500, 1987 GMC V1500, 1987-1991 GMC V1500 Suburban, 1987 GMC V2500, 1987-1991 GMC V2500 Suburban, 1987-1991 GMC V3500, 1987-1989 Pontiac Safari, 1988-1999 Chevrolet C1500, 1988-1999 Chevrolet C2500, 1988-1999 Chevrolet C3500, 1988-1999 Chevrolet K1500, 1988-1999 Chevrolet K2500, 1988-1999 Chevrolet K3500, 1988-1998 Chevrolet S10, 1988-1994 Chevrolet S10 Blazer, 1988-1990 GMC S15, 1988-1991 GMC S15 Jimmy, 1989-1991 Chevrolet R1500 Suburban, 1989 Chevrolet R2500, 1989-1991 Chevrolet R2500 Suburban, 1989-1991 Chevrolet R3500, 1989-1991 Chevrolet V1500 Suburban, 1989-1991 Chevrolet V2500 Suburban, 1989-1991 Chevrolet V3500, 1991-1996 Buick Commercial Chassis, 1991-1996 Buick Roadmaster, 1991-1999 Chevrolet C3500HD, 1991-1992 Chevrolet Commercial Chassis, 1991-1998 GMC Sonoma, 1991 GMC Syclone, 1991-1994 Oldsmobile Bravada, 1992-1996 Cadillac Commercial Chassis, 1992-1999 Chevrolet C1500 Suburban, 1992-1999 Chevrolet C2500 Suburban, 1992-1999 Chevrolet K1500 Suburban, 1992-1999 Chevrolet K2500 Suburban, 1992-1993 GMC Typhoon, 1992-1998 GMC Yukon, 1996-1998 Oldsmobile Bravada, 1995-1998 Chevrolet Tahoe, 1996-1998 Chevrolet Express 1500, 1996-1998 Chevrolet Express 2500, 1996-1998 Chevrolet Express 3500, 1996-1998 GMC Savana 1500, 1996-1998 GMC Savana 2500, 1996-1998 GMC Savana 3500, 1997 Ford F-250 HD, 1998-1999 GMC C3500HD, 1999 Chevrolet C35 ABOUT DORMAN PRODUCTSPeople's lives and livelihoods depend upon cars and trucks. Dorman gives people greater freedom to fix these vehicles by constantly developing new repair solutions that put owners and installers first.
What makes us distinct from other aftermarket companies is our customer-first mindset. Everything we do is centered around providing customer value, both in the quality of our products, and the creativity of our solutions. Our engineers and designers go out of their way to save repair technicians time, and save vehicle owners money. The engine that powers us is our Culture of Contribution. We empower and celebrate new ideas throughout our organization, because that just means we have more ways to solve problems. Our family-run roots give us a spirit of entrepreneurship that accelerates our speed and agility. This is a rare combination in a fast-growing, global enterprise that makes Dorman a special place to work. |
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We carry performance and replacement parts, along with every consumer item you’ll ever need. Take advantage of our huge distribution network in the United States and Canada, we're able to ship direct to you, so we can get your order into your hands faster than the competition. Our goal is to exceed your expectations. And we’ve built a system to do just that. | ![]() |
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Our company combines hard-core drag racers and auto enthusiasts with tech-savvy engineers and developers — all car lovers — to create a webstore that gives you an unmatched shopping experience — and we deliver it fast. Very fast. Unlike traditional brick-and-mortar retail outlets, our inventory isn’t limited to what we can pack into a storefront or what a counter clerk may be able to find. While they can only offer you hundreds of items, you’re just a few clicks away from millions of parts when you shop PartsHawk — all in stock and ready to ship. And since we don’t own any of those expensive stores, we can offer our parts for less, and that saves you money on every part, every day. A better shopping experience, for every product for every car, whenever you order. |
With the industry’s largest selection of consumer, performance and classic parts, information-rich website, world-class customers service and crazy-fast shipping, PartsHawk has become a new and easier way to purchase any auto part online. And we guarantee it. | ![]() |
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SHIPPING POLICY
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RETURN POLICY PartsHawk stands behind every item we sell. Occasionally, there may be an issue with your item or your order and we will do our best to ensure you are 100% satisfied. We offer a 60 day exchange or refund policy on all orders. Within 60 days or receipt of your order you may request a return for either an exchange or a refund. All product returns must be in the original packaging, have not been used, installed or damaged due to improper installation. All parts, hardware, documents and instructions must be included in the returns. PartsHawk will also support the manufacture’s warranty for all item during the warranty period offered by the manufacturer. |
Carriers and Ship Methods: We ship most packages to the contiguous 48 states using USPS, UPS or FedEx. Upon shipping we determine the closest distribution center to you and the quickest method. | Note: We do not accept returns for Car Computers, Performance tuners or Vehicle Programmers. If the product is defective we will exchange the unit for the exact item. No new returns on these products. |
Large Parcel Items: For large items (bumpers, side steps, bed covers, etc.), these may be shipped through a truck delivery service. If you are having issues tracking your package please contact us so we can assist you. |
Return Check List
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GLOBAL SHIPPING PROGRAM
How does shipping work? Placing an order outside the US is easy! In fact, eBay handles the entire transaction for you once we have shipped the product to their warehouse in Kentucky. Once the order has shipped you will receive a tracking number from our warehouse to Kentucky and then another tracking number from Kentucky to you. Additional Charges and Fees Additional shipping, duties and taxes will be calculated by eBay during check out. |
Outside the US? Don't worry, PartsHawk is currently shipping to over 100 countries Check the Shipping and Payments section above to see if this item can be shipped to you. |
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What if my order shows shipped but the package is not moving?
At times there is a delay in the carrier’s tracking for updates. Please allow up to 24 hours for your tracking to update. If you still do not see any movement, please contact our Customer Service Department and we will be happy to assist. |
What if I am not available when the carrier tries to deliver?
If there is no response when the package arrives, the driver may leave the package nearest to the street or make a second delivery attempt on the next business day. Please check your tracking info as it will let you know the next steps for delivery attempt. |
How can I get a copy of my receipt or invoice?
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What if the tracking number is not working after 24 hours? Depending on the size of your item, it could be shipped with a truck carrier and will require you to be present at time of delivery. Please feel free to reach out to us and we will provide additional details. |
I have special delivery instructions (i.e. Leave by back door, leave with neighbor, place in the planter on the left of my garage, etc.) We recommend leaving a note for the carrier on the door nearest to the street as we do not have a way to communicate those requests for you. |
Why did my item ship from a different location?
Many parts are stocked in more than one warehouse location. As a result your order may ship from a location other than the location shown in the listing. In most cases the shipping location will be closer to delivery address as we always try to ship from the closest warehouse to minimize transit times. In some circumstances intraday sales and other inventory changes may result in your item being shipped from a location further from your delivery address. |
Do I have to be there to sign for my package? If your order is over $250 there is a possibility it was shipped with a signature required option. The easiest way to check is to locate the tracking number for your order and open on the carrier’s website. There is no additional cost to you for this service. |
Can I pickup my part/order from your warehouse? Sorry, we do not offer the pickup in warehouse option as our warehouses do not have public access |
How do I know if this part will fit my vehicle? Check the vehicle compatibility guide above or just reach out to us. Updated 10.19.2023 |