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Hydraulic Valve Adjuster - ACDelco (HL129)

ACDelco - hl129

ACDelcoMPNHL129
Sale Price$15.63
Description : ACDelco GM Original Equipment Engine Valve Lifters automatically help maintain a 'zero' valve lash condition to help prevent valve train noise and unnecessary valve train component wear, and are GM-recommended replacements for your vehicle's original components. These original equipment valve lifters have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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Product Details

Description

ACDelco GM Original Equipment Engine Valve Lifters automatically help maintain a 'zero' valve lash condition to help prevent valve train noise and unnecessary valve train component wear, and are GM-recommended replacements for your vehicle's original components. These original equipment valve lifters have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Part Number (MPN)
HL129
Brand
SKU
HL129
Condition
New
Other Names
12686787
Brand
GM Genuine Parts
FAQ - Answer 1
No. You should get the lifter that is designed for your camshaft.
FAQ - Answer 2
Yes. A stuck lifter will prevent the valve from opening or closing, causing internal engine problems.
FAQ - Question 1
Can I put any type of lifter in my engine?
FAQ - Question 2
Can a stuck lifter cause engine problems?
Features & Benefits - Bullet 1
Adjusts the valves on your vehicle's engine for proper performance
Features & Benefits - Bullet 2
GM-recommended replacement part for your GM vehicle's original factory component
Features & Benefits - Bullet 3
Offering the quality, reliability, and durability of GM OE
Features & Benefits - Bullet 4
Manufactured to GM OE specification for fit, form, and function
Good Maintenance Practices - Section 1 - Bullet 1
Before purchasing and installing an engine valve lifter, make sure it is the correct size and fit for your vehicle.
Good Maintenance Practices - Section 1 - Bullet 2
Keep the coolant level full and do not allow the engine to overheat - excessive heat could cause the lifter to expand and stick.
Good Maintenance Practices - Section 1 - Bullet 3
Keep engine oil level full.
Good Maintenance Practices - Section 1 - Bullet 4
Be sure that flat non-roller lifters turn in their bores at least 45 degrees in 2 crankshaft revolutions, to help prevent camshaft lobe damage.
Good Maintenance Practices - Section 1 - Bullet 5
If a tapping sound occurs in the engine, have it checked - it could be a sign of a faulty lifter and lead to excessive damage to engine components.
Good Maintenance Practices - Section 1 - Bullet 6
Have your vehicle inspected as soon as possible if the 'Service Engine Soon' light illuminates.
Good Maintenance Practices - Section 1 - Bullet 7
Have your vehicle inspected immediately if the 'Service Engine Soon' light flashes rapidly, as this could indicate an engine misfire condition which may damage your engine and/or engine emission components.
Good Maintenance Practices - Section 1 - Bullet 8
Regularly inspect engine valve lifter for signs of damage or wear, and replace them if signs of damage are found.
Lifter Type
Hydraulic OHC
Material
Steel
Maximum Outside Diameter
0.472<br />12
Roller
No
Signs of Wear & Troubleshooting - Section 1 - Bullet 1
Tapping noises from the engine
Signs of Wear & Troubleshooting - Section 1 - Bullet 2
Loss of power
Signs of Wear & Troubleshooting - Section 1 - Bullet 3
Engine misfire
Signs of Wear & Troubleshooting - Section 1 - Bullet 4
Poor engine performance
Signs of Wear & Troubleshooting - Section 1 - Bullet 5
Excessive noise in the valve train
Signs of Wear & Troubleshooting - Section 1 - Header
Signs of wear for engine valve lifters include but are not limited to:

YearMakeModelBody & TrimEngine & Transmission
Vehicle #1
Year
Make
Model
Body & Trim
Engine & Transmission

BrandEquivalent Part Numbers

Rows per page:

0-0 of 0

BrandEquivalent Part Numbers
GM
12686787

Shipping Policy

  • In stock orders ship within 24 hours.
  • Weekend orders will be processed the next business day.
  • If a part is not in stock and must be ordered from the manufacturer, it usually takes 2-3 days to arrive to us and will be promptly shipped to you. Most of the orders are shipped complete within 2-3 business days. A few of the parts ordered from the manufacturer may take up to 5-6 business days to arrive and will shipped to you immediately.
  • Depending upon location, ground shipments usually take 2-7 days.
  • Your order may be shipped Overnight for an additional cost.
  • Oversized shipments will be additional; you will be contacted prior to shipping for approval.
  • We cannot guarantee transit times for ground and oversize orders.
  • Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost to the customer.
  • We do not ship internationally.
  • In the unlikely event that a part has been placed on backorder or discontinued, we will do our best to try and find one for you as quickly as possible.
  • We do not ship COD orders.

We use the following shipping parties:

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Some products available are shipped directly from the manufacturer or supplier rather than from our own warehouse. This allows us to offer you a wider selection of parts at competitive prices. When an item shows "Drop Ship" the supplier currently has it in stock and it will typically ship within 1–2 business days

Check out our Shipping Policy for more details.

Return Policy

30-Day Return Policy – Upgrade Auto Parts

At Upgrade Auto Parts, we want you to be completely satisfied with your purchase. If for any reason you are not happy with your order, you can return it within 30 days of receiving your item for a refund or exchange, subject to the following conditions:

  1. Eligibility: Returns are accepted on parts that are unused, in original condition, and in the original packaging. Items that have been installed, used, or modified are not eligible for return.

  2. Shipping Costs: The customer is responsible for return shipping costs unless the return is a result of a Upgrade Auto Parts error (e.g., wrong part sent or defective item). We recommend using a trackable shipping service to ensure your return reaches us safely.

  3. Refunds & Exchanges: Once the return is received and inspected, we will issue a refund to your original payment method or process an exchange if preferred. Refunds typically take 5-7 business days to be processed.

If you have any questions or need assistance with your return, our customer service team is here to help!

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Check out our Return Policy for more details.

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Welcome to Upgrade Auto Parts​, your trusted source for premium automotive components. We understand that finding the right parts for your vehicle can be a challenge, which is why we've made it our mission to simplify the process. From essential maintenance items to performance upgrades, our extensive catalog is built on a foundation of quality, reliability, and customer satisfaction. We're here to provide the expertise and the products you need to keep your vehicle running at its best. Drive smarter, choose Upgrade Auto Parts.​