---
title: "l5p injector pigtail — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/l5p-injector-pigtail"
last_updated: "2026-07-13T22:26:00.379Z"
locale: en
meta:
  description: "a concentrated shelf (top 5 take 85% of clicks) — l5p injector pigtail doesn't clear our bar today."
  "og:description": "a concentrated shelf (top 5 take 85% of clicks) — l5p injector pigtail doesn't clear our bar today."
  "og:title": "l5p injector pigtail — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen"
---

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# **l5p injector pigtail**

**Skip it**

A concentrated shelf (top 5 take 85% of clicks) — this niche doesn't clear our bar today.

Market size 19Growth 28Conversion 95Competition 13Returns 93Price range 30Avg price 93Brand share 27Review moat 98Quality gap 24

**Review moat**

**Incredible****43.18**

avg incumbent reviews — the moat a new listing must climb

**Conversion**

**Incredible****12.1%**

search→purchase rate — share of searches ending in a sale

**Returns**

**Great****1.1%**

return rate — above 6% kills the launch gate

**Avg price**

**Great****$51.77**

avg listing price — sweet spot $15–$100

**Price range**

**Okay****$12.66–$299.85**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Growth**

**Okay****+2.4%**

90-day search growth — must beat 0% to launch

**Brand share**

**Okay****89%**

top-5 brand share — brands hold most of the demand

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Market size**

**Bad****$77K**

$77K/yr · 12K searches

**Competition**

**Bad****85%**

top-5 click share — a locked-up shelf

## **Competition**

The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**9 **▼falling

**Sellers**

**55**

**Top-5 brand share**

**89%**

**Open market**

**6%**

- smart repairboy38% - GM GENUINE PARTS23% - MEMOEO11% - MOMYCAT10% - Fleece Performance Engineering7% - KPALAG5% - Open — no brand owns it (3 brands, 6%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$8K20%$15K30%$23K40%$31K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![2PCS PT3739 Injector Pigtail Connector Replace for Duramax L5P Engine V8 6.6L Original Equipment Multi-Purpose Pigtail Kit](https://m.media-amazon.com/images/I/41qdHdPsxLL.jpg)**2PCS PT3739 Injector Pigtail Connector Replace for Duramax L5P Engine V8 6.6L Original Equipment Multi-Purpose Pigtail Kit**smart repairboy**$13.42**4.7★132 rev](https://www.amazon.com/dp/B0C7JY652J) [2![GM Genuine Parts PT3739 (19368140) Multi-Purpose Pigtail Kit](https://m.media-amazon.com/images/I/21lyvEPqfKL.jpg)**GM Genuine Parts PT3739 (19368140) Multi-Purpose Pigtail Kit**GM GENUINE PARTS**$55.31**4.8★144 rev](https://www.amazon.com/dp/B07CJHYDH7) [3![MEMOEO Injector Pigtail Connector 19368140 PT3739 Cmpatible with 6.6L L5P Duramax Engine SILVERADO SIERRA CANYON EXPRESS 2Pcs](https://m.media-amazon.com/images/I/41zrUp6UmTL.jpg)**MEMOEO Injector Pigtail Connector 19368140 PT3739 Cmpatible with 6.6L L5P Duramax Engine SILVERADO SIERRA CANYON EXPRESS 2Pcs**MEMOEO**$13.37**4.7★22 rev](https://www.amazon.com/dp/B0FC6C1F6L) [4![MOMYCAT 8PCS PT3739 Fuel Injector Pigtail Connector Kit - Compatible with Chevy GM 2017-2024 OEM 19368140 Replacement for Duramax L5P 6.6L V8 - Original Equipment Multi-Purpose Pigtail](https://m.media-amazon.com/images/I/41RXDfqkv6L.jpg)**MOMYCAT 8PCS PT3739 Fuel Injector Pigtail Connector Kit - Compatible with Chevy GM 2017-2024 OEM 19368140 Replacement for Duramax L5P 6.6L V8 - Original Equipment Multi-Purpose Pigtail**MOMYCAT**$28.55**5.0★8 rev](https://www.amazon.com/dp/B0FF36V63Q) [5![KPALAG 16 AWG Multi-Purpose Pigtail Fuel Injector Connector Harness Wire Compatible with GMC Chevy L5P Duramax Diesel V8 6.6L Replace#: 19368140 PT3739](https://m.media-amazon.com/images/I/41W9rgMtklL.jpg)**KPALAG 16 AWG Multi-Purpose Pigtail Fuel Injector Connector Harness Wire Compatible with GMC Chevy L5P Duramax Diesel V8 6.6L Replace#: 19368140 PT3739**KPALAG**$12.66**4.4★9 rev](https://www.amazon.com/dp/B0DLMY1K14)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![NPSNGSJY PT3739 Injector Pigtail Connector Compatible with Duramax L5P Engine V8 6.6L Replacement for 19368140 Fuel Injector Pigtail Connector Kit (4pcs)](https://m.media-amazon.com/images/I/41s362RFNwL.jpg)**NPSNGSJY PT3739 Injector Pigtail Connector Compatible with Duramax L5P Engine V8 6.6L Replacement for 19368140 Fuel Injector Pigtail Connector Kit (4pcs)**NPSNGSJY**$16.97**11 rev11mo ago](https://www.amazon.com/dp/B0FDKJQP55) [![MOMYCAT 8PCS PT3739 Fuel Injector Pigtail Connector Kit - Compatible with Chevy GM 2017-2024 OEM 19368140 Replacement for Duramax L5P 6.6L V8 - Original Equipment Multi-Purpose Pigtail](https://m.media-amazon.com/images/I/41RXDfqkv6L.jpg)**MOMYCAT 8PCS PT3739 Fuel Injector Pigtail Connector Kit - Compatible with Chevy GM 2017-2024 OEM 19368140 Replacement for Duramax L5P 6.6L V8 - Original Equipment Multi-Purpose Pigtail**MOMYCAT**$28.55**8 rev1y ago](https://www.amazon.com/dp/B0FF36V63Q) [![MEMOEO Injector Pigtail Connector 19368140 PT3739 Cmpatible with 6.6L L5P Duramax Engine SILVERADO SIERRA CANYON EXPRESS 2Pcs](https://m.media-amazon.com/images/I/41zrUp6UmTL.jpg)**MEMOEO Injector Pigtail Connector 19368140 PT3739 Cmpatible with 6.6L L5P Duramax Engine SILVERADO SIERRA CANYON EXPRESS 2Pcs**MEMOEO**$13.37**22 rev1y ago](https://www.amazon.com/dp/B0FC6C1F6L) [![8PCS Injector Pigtail Connector PT3739 Fit for Chevy GM Vehicles 2017-2024 Multi-Purpose Pigtail Kit Fit for Duramax L5P Engine V8 6.6L Replace 19368140 1936-8140](https://m.media-amazon.com/images/I/41sCNyoJTFL.jpg)**8PCS Injector Pigtail Connector PT3739 Fit for Chevy GM Vehicles 2017-2024 Multi-Purpose Pigtail Kit Fit for Duramax L5P Engine V8 6.6L Replace 19368140 1936-8140**Qnbes**$27.29**4 rev1y ago](https://www.amazon.com/dp/B0F47P49KL) [![Replacement Fuel Injector Connector With Pigtail for L5P Duramax - 8 Pack](https://m.media-amazon.com/images/I/21ZaqrrjwCL.jpg)**Replacement Fuel Injector Connector With Pigtail for L5P Duramax - 8 Pack**Fleece Performance Engineering**$299.85**1 rev1y ago](https://www.amazon.com/dp/B0DWLVPKLC)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![4PCS PT3739 Injector Pigtail Connector Original Equipment Multi-Purpose Pigtail Kit Replace for Duramax L5P Engine V8 6.6L](https://m.media-amazon.com/images/I/4142NLliD2L.jpg)**4PCS PT3739 Injector Pigtail Connector Original Equipment Multi-Purpose Pigtail Kit Replace for Duramax L5P Engine V8 6.6L**smart repairboy**$23.39**4.7★**▲ 195%**](https://www.amazon.com/dp/B0BY8XDY2C) [![MOMYCAT 8PCS PT3739 Fuel Injector Pigtail Connector Kit - Compatible with Chevy GM 2017-2024 OEM 19368140 Replacement for Duramax L5P 6.6L V8 - Original Equipment Multi-Purpose Pigtail](https://m.media-amazon.com/images/I/41RXDfqkv6L.jpg)**MOMYCAT 8PCS PT3739 Fuel Injector Pigtail Connector Kit - Compatible with Chevy GM 2017-2024 OEM 19368140 Replacement for Duramax L5P 6.6L V8 - Original Equipment Multi-Purpose Pigtail**MOMYCAT**$28.55**5.0★**▲ 79%**](https://www.amazon.com/dp/B0FF36V63Q) [![Fleece Performance Replacement Fuel Injector Connector With Pigtail for L5P Duramax](https://m.media-amazon.com/images/I/21fXrSR7JHL.jpg)**Fleece Performance Replacement Fuel Injector Connector With Pigtail for L5P Duramax**Fleece Performance Engineering**$64.66**5.0★**▲ 46%**](https://www.amazon.com/dp/B0BT892B31) [![KPALAG 16 AWG Multi-Purpose Pigtail Fuel Injector Connector Harness Wire Compatible with GMC Chevy L5P Duramax Diesel V8 6.6L Replace#: 19368140 PT3739](https://m.media-amazon.com/images/I/41W9rgMtklL.jpg)**KPALAG 16 AWG Multi-Purpose Pigtail Fuel Injector Connector Harness Wire Compatible with GMC Chevy L5P Duramax Diesel V8 6.6L Replace#: 19368140 PT3739**KPALAG**$12.66**4.4★**▲ 12%**](https://www.amazon.com/dp/B0DLMY1K14) [![8PCS Injector Pigtail Connector PT3739 Fit for Chevy GM Vehicles 2017-2024 Multi-Purpose Pigtail Kit Fit for Duramax L5P Engine V8 6.6L Replace 19368140 1936-8140](https://m.media-amazon.com/images/I/41sCNyoJTFL.jpg)**8PCS Injector Pigtail Connector PT3739 Fit for Chevy GM Vehicles 2017-2024 Multi-Purpose Pigtail Kit Fit for Duramax L5P Engine V8 6.6L Replace 19368140 1936-8140**Qnbes**$27.29**3.5★**— 7%**](https://www.amazon.com/dp/B0F47P49KL)

**~~View all trending →~~**

## **Demand**

Weekly Amazon search volume, last 39 weeks — +2.4% search growth over the last 90 days.

300200Spike '26Oct '25Nov '25Jan '26Feb '26Mar '26May '26Jun '26

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Value For Money**18%

*“The price is good too”*

**Efficiency**18%

*“Works perfectly”*

**Size-Overall**17%

*“Fit perfect”*

**Quality-Overall**13%

*“Quality with fair pricing”*

**Advertised Vs Actual Product**11%

*“Exceeded expectations”*

**Ease Of Use**7%

*“They are easy to use and splice in and they do exactly what theyre supposed to”*

**Assembly/Installation**5%

*“Installation was straightforward with no issues”*

**Maintenance And Repair**4%

*“They worked ok for my repair”*

**Durability**2%

*“Im confident theyll hold up over time”*

### **What buyers complain about **

**Socket/Port/Plug**25%

*“Had problems with one connector”*

**Assembly/Installation**17%

*“Took me about 2 hours to install both sides”*

### **Top return reasons **

**Maintenance And Repair**15%

**Compatibility-Overall**13%

**Value For Money**12%

**Advertised Vs Actual Product**12%

**Quality-Overall**8%

**Socket/Port/Plug**8%

**Size-Overall**8%

**Connectivity-Overall**8%

**Defective Material/Parts**6%

**Material Quality**4%