HSP Diesel Cold Air Intake for 2017-2019 Chevrolet and GMC L5P Duramax
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Colours and prices as published by HSP Diesel · verified 9/8/2026
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HSP 2017-2019 Chevrolet / GMC L5P Cold Air Intake
Part Number: 602-HSP
The HSP Diesel Cold Air Intake is a powerful upgrade for 2017-2019 L5P Duramax-equipped Chevrolet and GMC trucks. Designed to eliminate airflow restrictions, it helps your truck breathe better and perform at its peak.
Why Upgrade Your L5P Intake?
The factory intake on the L5P Duramax engine is restrictive and undersized. It limits airflow, reducing performance and response. With the L5P platform offering high power potential from the factory, resolving airflow bottlenecks is essential. The HSP Cold Air Intake solves this problem with improved design and increased efficiency.
What Makes the HSP Cold Air Intake Different?
HSP's intake system is a full metal assembly featuring mandrel-bent tubing for smoother transitions and reduced turbulence. A large heatshield enclosure utilizes the OEM hood scoop for ram-air functionality, helping deliver colder, denser air. This results in improved throttle response, more consistent power, and increased overall performance — all without the need for tuning. Dyno testing has shown increases of up to 20 horsepower on average.
Whats
Included:
• 1x 4.5" Cold Air Intake Tube (HSP-IN-151-1)
• 1x L5P Airbox (HSP-IN-736)
• 1x L5P Airbox Lid (HSP-IN-736-1)
• 1x 4.5" Filter (RFB-413-RFAB)
• 4x 1/8" Aluminum Rivet (RFB-098-RFAB)
• 17x Trim Lock (RFB-411-RFAB)
• 4x Heatshield Box Felt Washer (RFB-737-RFAB)
• 2x M4x.7x10mm Bolt (RFB-901-RFAB)
• 1x L5P HSP Backer Plate (RFB-736-3-RFAB)
• 1x M6-1.0 x 10mm Hex Head Bolt (RFB-094-RFAB)
• 1x Black Nylon Push-Type Retainer (RFB-095-RFAB)
• 1x 4" T-Bolt Clamp (RFB-424-RFAB)
• 1x 4.5" T-Bolt Clamp (RFB-435-RFAB)
• 1x L5P Heatshield Box Pins (RFB-736-2-RFAB)
• 1x 4" - 4.5" 58degree Reducer Boot (RFB-772-RFAB)
Fitment:
• L5P: 2017-2019 (VIN Code Y)
Special
Note:
Although L5P trucks from 2017-2023 share the same VIN code, this intake only fits the 2017-2019 models due to underhood design differences. Be sure to verify the 10th digit of your VIN to confirm model year.
Note:
This product no longer includes the rubber grommet that was previously part of the kit.
Overview:
• Mandrel-bent metal tubing for maximum flow
• Designed to use the factory hood scoop ram-air system
• No tuning required
• Dyno-proven gains up to 20HP
• Powder coating options for a clean custom look
• Cleanable, reusable air filter
Our Warranty
HSP "NO BS" Limited Lifetime Warranty
At HSP, we believe in our products and stand firmly behind every item that leaves our facility. Our warranty commitment is simple — if something goes wrong, well take care of it. No fine print, no hassle.
Click here to view the HSP Warranty
HSP 2017-2019 Chevrolet / GMC L5P Cold Air Intake
Part Number: 602-HSP
The HSP Diesel Cold Air Intake is a powerful upgrade for 2017-2019 L5P Duramax-equipped Chevrolet and GMC trucks. Designed to eliminate airflow restrictions, it helps your truck breathe better and perform at its peak.
Why Upgrade Your L5P Intake?
The factory intake on the L5P Duramax engine is restrictive and undersized. It limits airflow, reducing performance and response. With the L5P platform offering high power potential from the factory, resolving airflow bottlenecks is essential. The HSP Cold Air Intake solves this problem with improved design and increased efficiency.
What Makes the HSP Cold Air Intake Different?
HSP's intake system is a full metal assembly featuring mandrel-bent tubing for smoother transitions and reduced turbulence. A large heatshield enclosure utilizes the OEM hood scoop for ram-air functionality, helping deliver colder, denser air. This results in improved throttle response, more consistent power, and increased overall performance — all without the need for tuning. Dyno testing has shown increases of up to 20 horsepower on average.
Whats
Included:
• 1x 4.5" Cold Air Intake Tube (HSP-IN-151-1)
• 1x L5P Airbox (HSP-IN-736)
• 1x L5P Airbox Lid (HSP-IN-736-1)
• 1x 4.5" Filter (RFB-413-RFAB)
• 4x 1/8" Aluminum Rivet (RFB-098-RFAB)
• 17x Trim Lock (RFB-411-RFAB)
• 4x Heatshield Box Felt Washer (RFB-737-RFAB)
• 2x M4x.7x10mm Bolt (RFB-901-RFAB)
• 1x L5P HSP Backer Plate (RFB-736-3-RFAB)
• 1x M6-1.0 x 10mm Hex Head Bolt (RFB-094-RFAB)
• 1x Black Nylon Push-Type Retainer (RFB-095-RFAB)
• 1x 4" T-Bolt Clamp (RFB-424-RFAB)
• 1x 4.5" T-Bolt Clamp (RFB-435-RFAB)
• 1x L5P Heatshield Box Pins (RFB-736-2-RFAB)
• 1x 4" - 4.5" 58degree Reducer Boot (RFB-772-RFAB)
Fitment:
• L5P: 2017-2019 (VIN Code Y)
Special
Note:
Although L5P trucks from 2017-2023 share the same VIN code, this intake only fits the 2017-2019 models due to underhood design differences. Be sure to verify the 10th digit of your VIN to confirm model year.
Note:
This product no longer includes the rubber grommet that was previously part of the kit.
Overview:
• Mandrel-bent metal tubing for maximum flow
• Designed to use the factory hood scoop ram-air system
• No tuning required
• Dyno-proven gains up to 20HP
• Powder coating options for a clean custom look
• Cleanable, reusable air filter
Our Warranty
HSP "NO BS" Limited Lifetime Warranty
At HSP, we believe in our products and stand firmly behind every item that leaves our facility. Our warranty commitment is simple — if something goes wrong, well take care of it. No fine print, no hassle.
Click here to view the HSP Warranty
HSP offers a limited lifetime warranty to the original purchaser on eligible HSP products. Underhood powder coating has separate two-year limited coverage. Non-HSP brands follow their own manufacturer warranties. Discontinued products and customer/installer damage are excluded. Claim authorization is required; customer pays inbound shipping for ordinary claims.
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
HSP Diesel warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
- Return eligibility
- HSP states returns must be postmarked within 30 days of purchase, new and unused with original tags and packaging, with an approved RMA. A 15% restocking fee and customer-paid return shipping apply. Special orders, non-HSP dropship products, apparel, used items and custom colors are excluded. Based on what HSP Diesel offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- HSP Diesel
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- HSP Diesel
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.