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ACDelco GM Original Equipment D329A Ignition Distributor Cap , Black

4.7 4.7 out of 5 stars 1,259 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Distributor Caps by ACDelco
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Purchase options and add-ons

Brand ACDelco
Color Black
Material Metal
Exterior Finish Metal
Item Dimensions LxWxH 8 x 4.6 x 2.2 inches

About this item

  • have metal inserts designed to provide the best possible fit to ensure maximum conductivity between the distributor towers and spark plug wires
  • easy-to-read locator keys on caps make proper installation simple
  • equipped with a full anti-arc barrier to reduce the possibility of secondary voltage arcs that can cause an engine to misfire
  • Fit type: Vehicle Specific
› See more product details

Frequently bought together

ACDelco GM Original Equipment D329A Ignition Distributor Cap , Black
$52.41
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ACDelco Professional D465 Ignition Distributor Rotor
$16.54
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In Stock
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ACDelco Professional 9718Q Spark Plug Wire Set
$64.11
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Top Brand: ACDelco

Highly Rated
100K+ customers rate items from this brand highly
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From the manufacturer

About Us

ACDelco is the premier supplier of GM Original Equipment (OE) automotive replacement parts, as well as a trusted provider of premium aftermarket parts for most other makes and models.

ACDelco provides high-quality parts for all major vehicle systems, as well as off-road, marine and industrial equipment. Our product portfolio includes maintenance parts such as car batteries, spark plugs, oil filters, air filters, wiper blades and brakes, as well as repair parts such as alternators, radiators, chassis and heating/cooling components.

Product Description

CERTAINTY STARTS HERE - ACDelco maintenance and repair parts are tested to rigorous standards and backed by GM so you and your vehicle can go the distance.

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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ACDelco GM Original Equipment D329A Ignition Distributor Cap , Black

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What's in the box

  • Igntition Distributor Cap

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    ACDelco GM Original Equipment D329A Ignition Distributor Cap , Black
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    Ignition Distributor Cap and Rotor Kit Compatible with Chevy GMC Cadillac Vortec V8 5.0l 5.7l 7.4l Ignition Distributor Set Brass Terminals with OE Part # DR474 DR331
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    Big-autoparts D328A D465 DR475 DR331 Brass Terminals Distributor Cap and Rotor Kit Compatible With Chevrolet GMC Oldsmobile Cadillac 1995-2007 10452457 10452458
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    Added to Cart
    Price$52.41-57% $29.38
    List: $68.00    		$17.99$28.63$17.99$14.99
    Delivery
    Get it as soon as Friday, May 3
    Get it as soon as Friday, May 3
    Get it as soon as Friday, May 3
    Get it as soon as Friday, May 3
    Get it as soon as Friday, May 3
    Get it as soon as Friday, May 3
    Customer Ratings
    4.74.7 out of 5 stars1,259
    4.74.7 out of 5 stars1,243
    4.44.4 out of 5 stars217
    4.74.7 out of 5 stars915
    4.64.6 out of 5 stars1,154
    4.54.5 out of 5 stars587
    Easy to install
    4.4
    4.7
    4.1
    4.6
    4.7
    4.5
    Value for money
    4.2
    4.4
    4.3
    4.5
    4.7
    4.5
    Sold By
    Amazon.com
    Amazon.com
    AUTOLINE
    Amazon.com
    Big-Autoparts
    Big-Autoparts
    material
    Metal
    Metal
    Brass
    Metal
    Brass
    —
    closure type
    Twist-On
    Twist-On
    Twist-On
    Twist-On
    Twist-On
    Twist-On
    exterior finish
    Metal
    Metal
    —
    Metal
    —
    —
    style
    Simple
    Simple
    Modern
    Simple
    Modern
    —
    weight
    0.2 pounds
    0.23 pounds
    —
    —
    0.73 pounds
    —

    Looking for specific info?

    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    1,259 global ratings

    Customers say

    Customers like the performance, quality, fit and value of the engine component cap. For example, they mention it works beautifully, it's a good factory replacement and it fits perfectly. They appreciate the ease of installation and value for money.

    AI-generated from the text of customer reviews

    70 customers mention66 positive4 negative

    Customers are satisfied with the performance of the engine component cap. They mention that it works beautifully, and is a perfect replacement. Some say that the rotor showed wear, but the truck was still running fine.

    "Genuine AC Delco at its best, truck runs amazing...." Read more

    "works well" Read more

    "A C Delco and G M they are just made for each other and they work well together and that's why i have always depended on them since my first car a..." Read more

    "...I ordered a new one and installed myself in 30 minutes. Truck is running great now." Read more

    70 customers mention53 positive17 negative

    Customers like the quality of the engine component cap. For example, they say it's a good factory replacement, reliable, and an exact replacement for OEM.

    "This is a great OE replacement for my 97 Chevy c1500 5.7...." Read more

    "Quality OEM product - ACDelco/Delphi should be your first choice for parts for your GM car/truck...." Read more

    "Quality OE GM parts. Installed this along with a new rotor, plug wires, spark plugs, coil wire, coil, and ignition control module...." Read more

    "...very loose allowing moisture to come in over night causing the spark not to catch and travel to the wires/plugs...." Read more

    60 customers mention57 positive3 negative

    Customers are satisfied with the fit of the engine component cap. They mention that it fits perfectly, like a glove, and is an exact match for their truck. Some appreciate the good, solid fit and finish.

    "1996 Chevy Silverado c1500Great price and perfect fitDidn’t come with screws through I wish I knew that" Read more

    "I love OEM parts fit good work good .no more missed fire ." Read more

    "Perfect fit for 1997 c1500 ext cab , 5.7L 2wd" Read more

    "Part arrived quickly, in a GM box has ordered and fit fine on my suburban" Read more

    41 customers mention41 positive0 negative

    Customers are satisfied with the value of the engine component cap. They mention that it is an OEM great value, and is cheaper than AutoZone and O'Reilly.

    "1996 Chevy Silverado c1500Great price and perfect fitDidn’t come with screws through I wish I knew that" Read more

    "...Great price for AC Delco." Read more

    "...This part was delivered in a week and was competitively priced as an OEM part" Read more

    "...this item is comparable or better than other replacement parts and price is good." Read more

    17 customers mention14 positive3 negative

    Customers find the installation of the engine component cap to be easy. They mention that the parts fit and the wires snap in confidently.

    "...Installs easily, brought back the strong spark that had diminished over time." Read more

    "...Easy to install as well, didn't even take 5 minutes. Make sure to transfer the wires in the same positions." Read more

    "Works great, not difficult to install once you climb inside the engine compartment...." Read more

    "...No damage and in new condition as advertised. Installed with no issues and works with no issues. No complaints on my end" Read more

    15 customers mention12 positive3 negative

    Customers like the screws that come with the engine component cap. They say they are a nice touch and are able to have extras if they drop one. Some customers also mention that the screws are OE part and fit great.

    "...Parts fit, wires snapped in confidently. Comes with two new Torx Screws; the rotor also does so you have extras if you drop one into the depths of..." Read more

    "...Component fits well and comes with 2 new hold down screws.since replacing the cap, my truck runs a lot smoother." Read more

    "Works for a 1998 GMC Yukon 5.7L. Comes with 2 mounting screws." Read more

    "...They came with the replacement screws and fit like OEM, no problems...." Read more

    6 customers mention0 positive6 negative

    Customers are dissatisfied with the authenticity of the engine component cap. They mention that it doesn't have copper points, rotor, or brass contacts. Some say that the cap is junk and has cheap aluminum contacts.

    "...One of the other previous reviewer feels the cap isnt authentic also .I know for a fact they are different metals in the contacts of the plug..." Read more

    "...Just took it to Advance Auto parts, this is not a AC Delco distributor cap...." Read more

    "no brass contacts did not fit correctly" Read more

    "This AC Delco cap is JUNK, got a carbon crack within 3 months of use. Don't waste your money!" Read more

    Don’t buy advance auto brand. Buy this! It’s cheaper too!
    5 Stars
    Don’t buy advance auto brand. Buy this! It’s cheaper too!
    After a month of reading forums and checking voltages and ohming out different electrical pieces I finally decided to purchase AC Delco cap and rotor button. I had bought an advance auto brand a few months back out of desperation because my truck dropped a cylinder and it fixed it for about 2 months and it would start dropping a cylinder a little bit and I had only put 4K on that cap and button. It wouldn’t store a code I just knew it was dropping a cylinder so i didn’t know which way to go. I tried everything and finally said ok let me buy another cap and rotor but a different brand. So I bought this and the rotor and presto the problem was fixed. Pictures below are advanced auto parts and only have 4K on them. Take my advice and don’t buy generic auto part store brands. Especially for electronic products
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    Top reviews from the United States

    Brandon
    5.0 out of 5 stars Fit my truck
    Reviewed in the United States on March 18, 2024
    Verified Purchase
    1996 Chevy Silverado c1500
    Great price and perfect fit
    Didn’t come with screws through I wish I knew that
    Helpful
     Report
    Ryan Leonard
    5.0 out of 5 stars Cap is very loose....problem solved!
    Reviewed in the United States on April 10, 2018
    Verified Purchase
    Genuine AC Delco at its best, truck runs amazing. At first I thought the new cap didn’t work....... the truck would crank in evening/mid day but never in the morning. I was puzzled to say the least. Turns out one of the two screw housing’s that is the on the distributor had broken so one of the two screws was not catching...the screw only spinning....the cap was very loose allowing moisture to come in over night causing the spark not to catch and travel to the wires/plugs. This fork in the road you have two options to buy a new distributor or to jimmy rig it! I was able to use one long zip tie and tighten it down. Problem solved
    Customer image
    Ryan Leonard
    5.0 out of 5 stars Cap is very loose....problem solved!
    Reviewed in the United States on April 10, 2018
    Genuine AC Delco at its best, truck runs amazing. At first I thought the new cap didn’t work....... the truck would crank in evening/mid day but never in the morning. I was puzzled to say the least. Turns out one of the two screw housing’s that is the on the distributor had broken so one of the two screws was not catching...the screw only spinning....the cap was very loose allowing moisture to come in over night causing the spark not to catch and travel to the wires/plugs. This fork in the road you have two options to buy a new distributor or to jimmy rig it! I was able to use one long zip tie and tighten it down. Problem solved
    Images in this review
    Customer image
    Customer image
    2 people found this helpful
    Helpful
     Report
    James M
    5.0 out of 5 stars Quality OEM Part At A Reasonable Price.
    Reviewed in the United States on June 7, 2023
    Verified Purchase
    A perfect fit for my 1997 GMC Sierra K1500 5.7L.
    One person found this helpful
    Helpful
     Report
    Brian King
    4.0 out of 5 stars Quality product
    Reviewed in the United States on February 12, 2024
    Verified Purchase
    AC Delco parts are best for your GM vehicles. Don't settle for less.
    Helpful
     Report
    TANGO NG
    5.0 out of 5 stars DiYer
    Reviewed in the United States on October 12, 2023
    Verified Purchase
    I love OEM parts fit good work good .no more missed fire .
    Helpful
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    Paul J Davila
    5.0 out of 5 stars Fit 1997 Chevy C1500 with 5.0L
    Reviewed in the United States on September 23, 2023
    Verified Purchase
    This was a perfect for my 1997 Chevy 1500 with 5.0L engine. Put this in 6 years ago as part of a tune up and it is still going strong. Great price for AC Delco.
    One person found this helpful
    Helpful
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    Elliott K.
    5.0 out of 5 stars These are notorious for going bad on the 5.7ltr Vortec
    Reviewed in the United States on May 27, 2023
    Verified Purchase
    I've put in several of these over the lifespan of my 99 GMC Suburban. The last one lasted about 6 months. Because of the way they're designed, the AC compressor lines run right over the top of the cap which drips condensation onto the cap causing corrosion on the pins and after a short time, even in mild humidity you start getting rough-starts/lots of cranking and no spark. If you're having rough starting issues or rough-running I suggest replacing these caps/rotors as a first-step even if you've already done it recently.
    One person found this helpful
    Helpful
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    Michael Knipper
    5.0 out of 5 stars Perfect OEM prodcut
    Reviewed in the United States on July 19, 2023
    Verified Purchase
    No issues with this, replaced a knock off cap on my '97 K1500 5.7 that had a ton of corrosion. For the price I'd definitely just get another AC Delco.

    Keep in mind there is no seal or o-ring on these, even from the factory. I also read to not try an seal them off with silicone or anything, it's meant to breath.
    Helpful
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    Top reviews from other countries

    sharleen patrick
    5.0 out of 5 stars Great value
    Reviewed in Canada on August 16, 2019
    Verified Purchase
    Fit right on with no problems
    Report
    David MacLean
    5.0 out of 5 stars made truck run better.
    Reviewed in Canada on March 25, 2018
    Verified Purchase
    fit well,made truck run better.
    Report
    Amazon Customer
    5.0 out of 5 stars Five Stars
    Reviewed in Canada on February 14, 2018
    Verified Purchase
    working great thanks
    Report
    Amazon Customer
    5.0 out of 5 stars Five Stars
    Reviewed in Canada on July 24, 2016
    Verified Purchase
    same as original
    One person found this helpful
     Report
    mdbrunt
    4.0 out of 5 stars Works like it should
    Reviewed in Canada on February 22, 2022
    Verified Purchase
    Paired with an ACdelco Rotor and it made a difference as soon as I started the truck up. Worth the money.
    Report