---
title: "lf3970 — Niche Verdict: Worth a look (51/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/lf3970"
last_updated: "2026-07-13T22:35:45.142Z"
locale: en
meta:
  description: "lf3970 shows searches that convert (16.5% search→purchase), but brand-locked demand (top 5 brands take 93% of clicks) keeps it on the watch list."
  "og:description": "lf3970 shows searches that convert (16.5% search→purchase), but brand-locked demand (top 5 brands take 93% of clicks) keeps it on the watch list."
  "og:title": "lf3970 — Niche Verdict: Worth a look (51/100) | Amazon United States - Flapen"
---

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# **lf3970**

**Worth a look**

Shows searches that convert (16.5% search→purchase), but brand-locked demand (top 5 brands take 93% of clicks) keeps it on the watch list.

Market size 25Growth 53Conversion 98Competition 22Returns 96Price range 60Avg price 94Brand share 18Review moat 96Quality gap 27

**Conversion**

**Incredible****16.5%**

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

**Review moat**

**Incredible****72.21**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Incredible****0.9%**

return rate — above 6% kills the launch gate

**Avg price**

**Great****$46.70**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$19.68–$154.23**

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

**Growth**

**Good****+25.0%**

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

**Quality gap**

**Okay****4.6★**

avg incumbent rating — lower means beatable quality

**Market size**

**Okay****$101K**

$101K/yr · 13K searches

**Competition**

**Bad****74%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****93%**

top-5 brand share — brand-locked demand

## **Competition**

The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**8 **▲rising

**Sellers**

**34**

**Top-5 brand share**

**93%**

**Open market**

**4%**

- Fleetguard66% - ATRACYPART15% - EMINENTGLOW6% - GETOPAUTO4% - PEIYAOTCO3% - CFKIT3% - Open — no brand owns it (2 brands, 4%)

## **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%$10K20%$20K30%$30K40%$40K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 14 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Fleetguard Oil Filter LF3970 Cummins ISB Engine (Pack of 2)](https://m.media-amazon.com/images/I/41bJsiJT4pL.jpg)**Fleetguard Oil Filter LF3970 Cummins ISB Engine (Pack of 2)**Fleetguard**$33.55**4.7★309 rev](https://www.amazon.com/dp/B071S941XG) [2![Fleetguard LF3970 Cummins Filtration Oil Filter 1-Pack](https://m.media-amazon.com/images/I/31l+yl-0KoL.jpg)**Fleetguard LF3970 Cummins Filtration Oil Filter 1-Pack**Fleetguard**$19.74**4.6★440 rev](https://www.amazon.com/dp/B000P4ZDTO) [3![LF3970 Fleetguard Lube Filter (Pack of 4)](https://m.media-amazon.com/images/I/31uHXtntELL.jpg)**LF3970 Fleetguard Lube Filter (Pack of 4)**Fleetguard**$63.95**4.5★21 rev](https://www.amazon.com/dp/B07WVSJTYJ) [4![LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (6 Pack)](https://m.media-amazon.com/images/I/4166c87y5QL.jpg)**LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (6 Pack)**ATRACYPART**$49.59**4.6★58 rev](https://www.amazon.com/dp/B0DHGYLJBC) [5![LF3970 Oil/Lube Filter Compatible With Replaces Cummins QSB 5.9L 6.7L ISB Engine Replaces P550428 P551019 3937736 3937144 B7177 Set Of 6](https://m.media-amazon.com/images/I/41VeImowrtL.jpg)**LF3970 Oil/Lube Filter Compatible With Replaces Cummins QSB 5.9L 6.7L ISB Engine Replaces P550428 P551019 3937736 3937144 B7177 Set Of 6**EMINENTGLOW**$50.66**5.0★1 rev](https://www.amazon.com/dp/B0FWS48S45)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![LF3970 Oil/Lube Filter Compatible With Replaces Cummins QSB 5.9L 6.7L ISB Engine Replaces P550428 P551019 3937736 3937144 B7177 Set Of 6](https://m.media-amazon.com/images/I/41VeImowrtL.jpg)**LF3970 Oil/Lube Filter Compatible With Replaces Cummins QSB 5.9L 6.7L ISB Engine Replaces P550428 P551019 3937736 3937144 B7177 Set Of 6**EMINENTGLOW**$50.66**1 rev8mo ago](https://www.amazon.com/dp/B0FWS48S45) [![LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (2 Pack)](https://m.media-amazon.com/images/I/41zm8c27a5L.jpg)**LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (2 Pack)**ATRACYPART**$20.91**58 rev1y ago](https://www.amazon.com/dp/B0DK8H68TY) [![LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (6 Pack)](https://m.media-amazon.com/images/I/4166c87y5QL.jpg)**LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (6 Pack)**ATRACYPART**$49.59**58 rev1y ago](https://www.amazon.com/dp/B0DHGYLJBC) [![LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (4 Pack)](https://m.media-amazon.com/images/I/41LwC1us24L.jpg)**LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (4 Pack)**ATRACYPART**$38.78**58 rev1y ago](https://www.amazon.com/dp/B0DK8DYYTX) [![LF3970 Oil Filter Fits for Cummins QSB ISB engines 3937736 5404947 Replacement For 3937736 3937144 B7177 P550428 Fits For QSB5.9L/6.7L ISB07 6.7L Diesel Engines(Set of 6)](https://m.media-amazon.com/images/I/31RJQmB8JpL.jpg)**LF3970 Oil Filter Fits for Cummins QSB ISB engines 3937736 5404947 Replacement For 3937736 3937144 B7177 P550428 Fits For QSB5.9L/6.7L ISB07 6.7L Diesel Engines(Set of 6)**ZELYVER**$55.40**2 rev1y ago](https://www.amazon.com/dp/B0DL9Z7XP9)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![LF3970 Fleetguard Lube Filter Replaces (Donaldson P550428 P551019)](https://m.media-amazon.com/images/I/31yQrLWalaL.jpg)**LF3970 Fleetguard Lube Filter Replaces (Donaldson P550428 P551019)**Fleetguard**$20.68**5.0★**▲ 245%**](https://www.amazon.com/dp/B07WQRTWGW) [![LF3970 Oil/Lube Filter Compatible With Replaces Cummins QSB 5.9L 6.7L ISB Engine Replaces P550428 P551019 3937736 3937144 B7177 Set Of 6](https://m.media-amazon.com/images/I/41VeImowrtL.jpg)**LF3970 Oil/Lube Filter Compatible With Replaces Cummins QSB 5.9L 6.7L ISB Engine Replaces P550428 P551019 3937736 3937144 B7177 Set Of 6**EMINENTGLOW**$50.66**5.0★**▲ 120%**](https://www.amazon.com/dp/B0FWS48S45) [![LF3970 Oil Filter Fits for Cummins QSB ISB engines 3937736 5404947 Replacement For 3937736 3937144 B7177 P550428 Fits For QSB5.9L/6.7L ISB07 6.7L Diesel Engines(Set of 6)](https://m.media-amazon.com/images/I/31RJQmB8JpL.jpg)**LF3970 Oil Filter Fits for Cummins QSB ISB engines 3937736 5404947 Replacement For 3937736 3937144 B7177 P550428 Fits For QSB5.9L/6.7L ISB07 6.7L Diesel Engines(Set of 6)**ZELYVER**$55.40**4.0★**▲ 80%**](https://www.amazon.com/dp/B0DL9Z7XP9) [![LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (6 Pack)](https://m.media-amazon.com/images/I/4166c87y5QL.jpg)**LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (6 Pack)**ATRACYPART**$49.59**4.6★**▲ 56%**](https://www.amazon.com/dp/B0DHGYLJBC) [![LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (2 Pack)](https://m.media-amazon.com/images/I/41zm8c27a5L.jpg)**LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428 P551019 3937736 3937144 B7177 (2 Pack)**ATRACYPART**$20.91**4.6★**— 8%**](https://www.amazon.com/dp/B0DK8H68TY)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 97 weeks — +25.0% search growth over the last 90 days.

400300Spike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Apr · busiest ÷ quietest = 2.1×

## **Reviews**

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

### **What buyers love **

**Advertised Vs Actual Product**33%

*“Items as described”*

**Value For Money**33%

*“Very fair price”*

**Quality-Overall**17%

*“Good quality”*

**Lubrication**8%

*“Works well i change oil frequently so these are a good price point”*

**Efficiency**8%

*“Works great”*

### **What buyers complain about **

**Filtration**33%

*“Today, I needed one, and discovered after an hour of unending frustration that NONE of the four filters I purchased fits onto my 2006 Ram with 5.9l Cummins engine”*

**Compatibility-Overall**33%

*“Does not fit 6.7l cummins”*

**Advertised Vs Actual Product**17%

*“Poor advertising as it stated it was a direct fit to my truck”*

**Size-Overall**17%

*“did not fit truck”*

### **Top return reasons **

**Size-Overall**39%

**Filtration**30%

**Compatibility-Overall**10%

**Advertised Vs Actual Product**9%

**Value For Money**6%

**Defective Material/Parts**4%

**Motor Issues**2%

**Assembly/Installation**2%