1981 Cadillac Eldorado
1981 Cadillac Eldorado Spark Plug

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1981 Cadillac Eldorado Spark Plug

1981 Cadillac Eldorado Spark Plug

Your 1981 Cadillac Eldorado might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Spark Plug product you desperately need.

We currently carry 25 Spark Plug products to choose from for your 1981 Cadillac Eldorado, and our inventory prices range from as little as $2.19 up to $14.99.

On top of low prices, Advance Auto Parts offers 9 different trusted brands of Spark Plug products for the 1981 Cadillac Eldorado. We only sell parts from trusted brands like E3 so that you can find quality parts you can count on.

Don’t take our word for it - check out customer ratings and reviews to buy with confidence. We have 80 reviews on our Spark Plug products for the 1981 Cadillac Eldorado from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Spark Plug stock in-person!

Spark Plug for Your 1981 Cadillac Eldorado

Search through our amazing selection of Spark Plug products for your 1981 Cadillac Eldorado to find exactly what you’re looking for. Compare prices and reviews to choose the best part for you.

  • Platinum Spark Plug

    Autolite - Platinum Spark Plug (Part No. AP646)

    Description
    5.0
    Read 3 review(s)

    from $3.49

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  • Double Platinum - Boxed - RN14PMP5

    Champion - Double Platinum - Boxed - RN14PMP5 (Part No. 7031)

    Description
    5.0
    Read 3 review(s)

    from $5.49

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  • V-Power Spark Plug

    NGK - V-Power Spark Plug (Part No. 6945)

    Description
    5.0
    Read 3 review(s)

    from $2.69

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  • Double Platinum Spark Plug

    Autolite - Double Platinum Spark Plug (Part No. APP646)

    Description
    5.0
    Read 1 review(s)

    from $5.29

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  • OE Fine Wire Iridium Spark Plug

    Bosch - OE Fine Wire Iridium Spark Plug (Part No. 9659)

    Description
    5.0
    Read 3 review(s)

    from $7.19

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  • Copper Resistor Spark Plug

    Autolite - Copper Resistor Spark Plug (Part No. 646)

    Description
    5.0
    Read 3 review(s)

    from $2.19

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  • V-Power Spark Plug

    NGK - V-Power Spark Plug (Part No. 4268)

    Description
    5.0
    Read 2 review(s)

    from $2.49

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  • Premium DiamondFIRE Electrode Automotive Spark Plug

    E3 - Premium DiamondFIRE Electrode Automotive Spark Plug (Part No. E3.42)

    Description
    4.5
    Read 3 review(s)

    from $6.19

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  • OE Fine Wire Platinum Spark Plug

    Bosch - OE Fine Wire Platinum Spark Plug (Part No. 6708)

    Description
    4.5
    Read 3 review(s)

    from $3.39

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  • RAPIDFIRE Spark Plug

    ACDelco - RAPIDFIRE Spark Plug (Part No. 2)

    Description
    4.5
    Read 2 review(s)

    from $5.29

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  • Copper Resistor Spark Plug

    Autolite - Copper Resistor Spark Plug (Part No. 666)

    Description
    4.0
    Read 3 review(s)

    from $2.39

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  • Premium DiamondFIRE Electrode Automotive Spark Plug

    E3 - Premium DiamondFIRE Electrode Automotive Spark Plug (Part No. E3.46)

    Description
    3.0
    Read 3 review(s)

    from $6.09

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  • Spark Plug with PlasmaCore

    Pulstar - Spark Plug with PlasmaCore (Part No. BE1H10)

    Description
    1.0
    Read 1 review(s)

    from $14.99

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  • Spark Plug Non-Foulers - 14mm Gasket Seat Long Reach

    Dorman - Help - Spark Plug Non-Foulers - 14mm Gasket Seat Long Reach (Part No. 42004)

    Description
    1.0
    Read 1 review(s)

    from $4.99

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  • Platinum Spark Plug

    Autolite - Platinum Spark Plug (Part No. AP666)

    Description
    1.0
    Read 1 review(s)

    from $3.49

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  • Conventional Spark Plug

    ACDelco - Conventional Spark Plug (Part No. R45TSX)

    Description

    from $2.49

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  • Conventional Spark Plug

    ACDelco - Conventional Spark Plug (Part No. R45XLS6)

    Description

    from $2.49

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  • Spark Plug Iridium TT

    Denso - Spark Plug Iridium TT (Part No. 4715)

    Description

    from $8.19

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  • RAPIDFIRE Spark Plug

    ACDelco - RAPIDFIRE Spark Plug (Part No. 4)

    Description

    from $5.29

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  • Iridium IX Spark Plug

    NGK - Iridium IX Spark Plug (Part No. 7559)

    Description

    from $6.99

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  • Spark Plug Iridium Power

    Denso - Spark Plug Iridium Power (Part No. 5330)

    Description

    from $8.99

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  • G-Power Platinum Spark Plug

    NGK - G-Power Platinum Spark Plug (Part No. 3142)

    Description

    from $3.49

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  • Spark Plug Non-Foulers - 14mm Tapered Seat

    Dorman - Help - Spark Plug Non-Foulers - 14mm Tapered Seat (Part No. 42006)

    Description

    from $4.49

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  • G-Power Platinum Spark Plug

    NGK - G-Power Platinum Spark Plug (Part No. 3207)

    Description

    from $3.49

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  • Platinum Power - Boxed - RN14PMC5

    Champion - Platinum Power - Boxed - RN14PMC5 (Part No. 3031)

    Description

    from $2.49

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FAQs for 1981 Cadillac Eldorado Spark Plug Products

What are the top user-rated Spark Plug products for the 1981 Cadillac Eldorado?

E3 Premium DiamondFIRE Electrode Automotive Spark Plug
4.6
Installed in 2008 Chevy crate 350/290 replacing R45TS plugs in a 1923 T Bucket. Engine ran smoother after installing these plugs. Not concerned with m
E3 Premium DiamondFIRE Electrode Automotive Spark Plug
3.1
Good affordable and good quality
Bosch OE Fine Wire Platinum Spark Plug
4.4
Great ordered cause Autolight coppers would not deliver to my house. Put them in truck seems to run better already