GM GENUINE PARTS 20936181 Secondary Air Pump Injection Inlet Hose

( Brand: Gm Genuine Parts ), ( Manufacturer Part Number: 20936181 ), ( Part Type: Pump Hose ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Make: Cadillac ), ( Year: 2013 2014 ), ( Parts Included: Only Part Reference 10 On The Diagram Is Included )

Review GM GENUINE PARTS Secondary Air Injection Pump Inlet Hose fits 2013–2014

The **GM 20936181 Secondary Air Injection Pump Inlet Hose** is a critical component of a vehicle s emissions control system, specifically designed to facilitate the proper operation of the secondary air injection pump in older General Motors engines equipped with this technology. This high-quality rubber hose is engineered to withstand the demanding conditions of high-temperature exhaust gases and the pulsating airflow generated by the air pump, ensuring reliable performance and longevity. Crafted from durable, heat-resistant synthetic rubber, the hose is reinforced with a robust internal braid or spiral wire to maintain its structural integrity under constant flexing and pressure fluctuations, preventing premature wear or failure. The inlet hose connects directly to the air pump s intake port, channeling fresh air into the exhaust manifold to aid in the oxidation of unburned hydrocarbons and carbon monoxide during engine warm-up, thereby reducing harmful emissions before they exit the tailpipe. Its precise fitment and secure clamping system often featuring a metal clamp or hose barb guarantees a leak-free connection, minimizing air loss and optimizing the efficiency of the secondary air system. Whether installed on classic muscle cars, vintage trucks, or restored classic vehicles, this hose is a vital part of maintaining compliance with original emissions standards and preserving the engine s performance and reliability. For optimal results, it is recommended to use genuine GM parts or high-quality aftermarket alternatives that meet or exceed OEM specifications, ensuring seamless integration with the vehicle s exhaust and air injection components.

### **Pros and Cons of buying a GM 20936181 Secondary Air Injection Pump Inlet Hose**

1. **Direct Compatibility** This part is specifically designed for GM vehicles, ensuring a proper fit without modifications. It is likely to be compatible with older GM engines that use secondary air injection systems, such as those found in pre-catalyst vehicles from the late 1980s to early 2000s.

2. **Reliability** GM parts, especially OEM or high-quality aftermarket replacements, are generally built to last. A well-made hose reduces the risk of leaks, cracks, or premature failure, which can be common with generic or low-quality alternatives.

3. **Performance Benefits** A functioning secondary air injection system helps reduce emissions by supplying additional air to the exhaust during engine warm-up, aiding in the burning of residual fuel. A faulty hose can disrupt this process, leading to poor cold-start emissions performance.

4. **Prevents Further Damage** If the original hose is cracked, split, or deteriorated, replacing it early can prevent air leaks that may force the secondary air injection pump to work harder, potentially shortening its lifespan or causing it to fail entirely.

5. **Easier Maintenance** Since this is a straightforward replacement part, swapping it out is typically a simple job that doesn t require specialized tools or extensive labor. This makes it a cost-effective fix compared to more complex repairs.

6. **Regulatory Compliance** Many older GM vehicles rely on secondary air injection systems to meet emissions standards. A failing hose can trigger check engine lights or cause the vehicle to fail emissions tests, so replacing it ensures compliance.

---

1. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (especially online marketplaces) may result in counterfeit or low-quality replicas. These can fail quickly, leading to repeated replacements and frustration.

2. **Limited Availability** As vehicles age, parts like this become harder to find, especially from official dealers. You may need to source it from specialty auto parts stores, salvage yards, or online marketplaces, which could take longer to arrive.

3. **Cost Considerations** While not excessively expensive, the price may be higher than generic hoses if you opt for OEM or high-quality aftermarket brands. If the vehicle is no longer in regular use, the cost-benefit ratio might not justify the purchase.

4. **Mixed Quality in Aftermarket Options** Some aftermarket hoses may not meet GM s original specifications, leading to leaks, kinks, or premature wear. Researching the brand and reading reviews can help mitigate this risk.

5. **Labor Time for Installation** Depending on the vehicle s design, accessing the secondary air injection system may require removing other components (e.g., intake manifold, air filters, or brackets). This can add time and complexity to the repair.

6. **System Dependency** If the secondary air injection system itself is failing (e.g., a bad pump or solenoid), replacing just the hose won t resolve the underlying issue. Diagnosing the entire system may be necessary for a permanent fix.

---

The **GM 20936181 Secondary Air Injection Pump Inlet Hose** is a practical and necessary replacement for older GM vehicles with secondary air injection systems. Its **primary advantage lies in ensuring proper emissions performance, preventing leaks, and avoiding further damage to the system**. However, **potential downsides include the risk of counterfeit parts, limited availability, and the need for careful sourcing to avoid low-quality replacements**.

If the vehicle is running into **check engine light issues, poor cold-start performance, or exhaust leaks**, replacing this hose is a straightforward and cost-effective solution. For best results, **purchase from a reputable dealer or aftermarket supplier with positive reviews**, and ensure the part matches your vehicle s year and engine configuration.

- **Buy from a trusted source** (e.g., RockAuto, AutoZone, local GM dealership, or a well-reviewed online retailer) to avoid counterfeit parts.

- **Verify compatibility** with your vehicle s exact model and year before purchasing.

- **Consider the overall health of the secondary air injection system** if the pump or solenoid is failing, address those issues simultaneously.

- **Install the hose promptly** to restore proper emissions performance and prevent further wear on related components.

For most drivers of older GM vehicles, this is a **worthwhile and relatively inexpensive repair** that can extend the life of the secondary air injection system and keep the vehicle running smoothly.

Details:

Parts and prices listed on our site are based off GM pricing. 2.5L, with prev. High-value items are usually sent with signature-delivery requirements.

part #: 20936181 prices

• $88.54-$95.45

specifications emissyste:

• for years: 2013-2014
• brand: Gm Genuine Parts
• mpn: 20936181
• part type: Pump Hose
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• make: Cadillac
• year: 2013 2014
• parts included: Only Part Reference 10 On The Diagram Is Included

general emissyste:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

payments emissyste:

• wallet: Apple-pay
• credit card: Visa
• other

shipping emissyste:

• service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air Saver
• transit: 4-8 Days
• cost: $8.00
• class: Standard, Expedited, One-day
• carrier: UPS
• type: Fixed

returns emissyste:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

offer emissyste:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: March 8, 2026

seller emissyste:

• city: Tomball, Texas
• # reviews: 5089
• rating: 99.7%

Gm Genuine Parts 20936181 Is Similar To:

• 00460734 Acdelco Gm Original Equipment Secondary Air Injection Vacuum Delay Valve (52.1% similar) Stock is updated nightly, so it possible that an item shows in but was already sold. Most items are shipped directly from our supplier to you. 18LIFE cycle status code: 4MATERIAL: plastic maximum diameter: 19. This part fits vehicles made in the following years 1991 , 1994 , 1995 , 1996 , 1997...(March 14th, 2018)
• 10037288 Gm Parts Nos Oem (26.7% similar) ...(December 31st, 2017)
• 10045075 Gm Nos Air Injection Engine Pulse Harness Assembly (38.7% similar) Unknown applications. Verify applications before buying. Nos Gm air injection engine pulse harness assembly for. Part I have no way to test this and it is sold as...(April 22nd, 2018)
• 10449092 Gm Buick Pontiac Genuine (20.4% similar) Free shipping. Item is brand new...(November 24th, 2017)
• 12515202 Gm Parts New Oem Crankcase Vent Tube Part Buick Century (26.4% similar) Please do your research or check with local Gm dealer to verify this is the correct part for car truck. New oem Gm crankcase vent tube part Buick century, may fit other model's also...(November 18th, 2018)
• 12556259 Acdelco Gm Original Equipment Vapor Canister Purge Valve Hose (31.1% similar) 75END 1 type: straightened 2 inside diameter...(December 12th, 2018)
• 12559015 Acdelco Gm Original Equipment Genuine Vapor Control Valve (30.5% similar) This will depend on the carrier. Software, DVD's, videos and VCR tapes are non-returnable, unless defective. Most carriers take 3-4 weeks to settle a claim...(October 7th, 2018)
• 12563944 Acdelco Gm Original Equipment Secondary Air Injection Pipe (53% similar) Catalytic converter mounted: no exhaust check valve included: no fitment type: direct replacement harmonized tariff code Hts: inlet port quantity: 1 length : 556. If your looking to increase gas mileage, get better engine performance, or help the environment 123AUTOPARTS on motors is place buy now...(October 31st, 2018)
• 12565207 Acdelco Gm Original Equipment Air Injection Pipe Gasket (45% similar) Information like which side a part fits left or right and specific vehicle attributes transmission, AWD RWD, other exclusions are included for your in this column. Finish material color shown in the listing image will often vary from actual part shipped. The image usually shows all pieces and qty ...(December 30th, 2018)
• 12570427 Acdelco Gm Original Equipment New Genuine Engine Lh Valve Cover (32.1% similar) 5, classic 3500 crew cab, extended regular cab 1 ton, 2/6 '6 box 3/4 8' 5'8 chassis ton 161. 3L, 8 Cl 3L4 DOORCADILLACCTS2004 Cl 2L1 2 ton, 1500 crew cab, cab long box, standard extended regular 2500 3/4 3500 chassis, 185. 5, 3500 crew cab, extended regular 4 door 1/2 ton, classic 1500 cab long box...(August 2nd, 2018)
• 12577221 Gm Brand New Genuine Oem Evaporative Emissions System Lines (30.1% similar) Manufacturer part number: identified in schematic if applicable...(December 24th, 2018)