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39

ls trunion upgrade kit

Skip it

Prices mostly outside the sweet spot ($48.75–$329.24) — this niche doesn't clear our bar today.

Market size 19Growth 30Conversion 34Competition 28Returns 81Price range 18Avg price 60Brand share 39Review moat 97Quality gap 35

Review moat

Incredible52.45

avg incumbent reviews — the moat a new listing must climb

Returns

Great1.7%

return rate — above 5% kills the launch gate

Avg price

Good$145.13

avg listing price — sweet spot $15–$100

Brand share

Okay81%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Conversion

Okay2.7%

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

Growth

Okay+3.7%

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

Competition

Okay68%

top-5 click share — leaders hold, buyers still browse

Market size

Bad$77K

$77K/yr · 20K searches

Price range

Bad$48.75–$329.24

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

Signals High Price

According to Flapen's Amazon United States niche tracking, ls trunion upgrade kit is a $77K/yr Amazon United States market (20K searches/yr). The top 5 brands hold 81% of demand. Verdict: Skip it — 39/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

ls trunion upgrade kit market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
$73K–$109K
units × avg price
Conversion rate
2.7%
Avg BSR
#201
Page quality
0%
Prime
75%
Sponsored
80%
Out of stock
14.5%
Avg brand age
34 months
Avg seller age
200 days

Competition & brand share

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

53

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

14%

  • Michigan Motorsports40%
  • Dynosty20%
  • Xotic Performance8%
  • BTR Brian Tooley Racing7%
  • RJSPHH7%
  • labwork5%
  • Open — no brand owns it (7 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +3.7% search growth over the last 90 days.
500300Spike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top ls trunion upgrade kit products on Amazon

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

0%5%$4K10%$8K15%$12K20%$15K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share
1
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Fits 1999-2013 4.8L 5.3L 5.7L Cathedral Port LS & 1999-2006 6.0L LS Engines | Complete Set of 16 Ready-to-Install Rockers

Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Fits 1999-2013 4.8L 5.3L 5.7L Cathedral Port LS & 1999-2006 6.0L LS Engines | Complete Set of 16 Ready-to-Install Rockers

Michigan Motorsports$195.214.7★342 rev

2
BTR V2 Trunnion Kit LS Premium Rocker Arm Trunion LS LS1 LS3 4.8 5.3 5.7 6.0 6.2 TK002

BTR V2 Trunnion Kit LS Premium Rocker Arm Trunion LS LS1 LS3 4.8 5.3 5.7 6.0 6.2 TK002

Dynosty$149.254.6★77 rev

3
Michigan Motorsports LS Rocker Arm Trunnion Upgrade Kit | High-Performance Bearing Upgrade | Fits GM LS1 LS2 LS3 LS6 4.8L 5.3L 5.7L 6.0L Engines

Michigan Motorsports LS Rocker Arm Trunnion Upgrade Kit | High-Performance Bearing Upgrade | Fits GM LS1 LS2 LS3 LS6 4.8L 5.3L 5.7L 6.0L Engines

Michigan Motorsports$112.714.6★180 rev

4
LS1 Rocker Arms with Bolts and Pre-Installed Trunion Kit - Fits LS2 LS6 LQ4 LQ9 LM7 4.8L 5.3L 5.7L 6.0L Engines - Xotic Performance | CP201

LS1 Rocker Arms with Bolts and Pre-Installed Trunion Kit - Fits LS2 LS6 LQ4 LQ9 LM7 4.8L 5.3L 5.7L 6.0L Engines - Xotic Performance | CP201

Xotic Performance$174.194.3★52 rev

5
BTR Brian Tooley Racing LS Rocker Arm Trunbion Kit (TK001) | Fits 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LQ4 LM7 LM4 Engines | Upgraded Bearing Trunnion Kit

BTR Brian Tooley Racing LS Rocker Arm Trunbion Kit (TK001) | Fits 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LQ4 LM7 LM4 Engines | Upgraded Bearing Trunnion Kit

BTR Brian Tooley Racing$119.194.9★26 rev

Newest

by launch date
Engine 16 Pcs LS Rocker Arms w/Installed Upgraded Trunion Kit Fit for GM LS 4.8L 5.3L 5.7L 6.0L LS2 LS6 LQ4 LQ9 LY5 LM7 L33 Replacement 10214664 12681275

Engine 16 Pcs LS Rocker Arms w/Installed Upgraded Trunion Kit Fit for GM LS 4.8L 5.3L 5.7L 6.0L LS2 LS6 LQ4 LQ9 LY5 LM7 L33 Replacement 10214664 12681275

TKUASWEB$94.441 rev

1y ago
EPChunMi LS Rocker Arm Trunion Kit with upgraded bolt Fits GM LS1 LS2 LS3 LS6 4.8 5.3 5.7 6.0 6.2L Engines

EPChunMi LS Rocker Arm Trunion Kit with upgraded bolt Fits GM LS1 LS2 LS3 LS6 4.8 5.3 5.7 6.0 6.2L Engines

EPChunMi$95.246 rev

1y ago
EPChunMi LS Rocker Arm Trunion Kit Fits GM LS1 LS2 LS3 LS6 4.8 5.3 5.7 6.0 6.2L Engines no bolts

EPChunMi LS Rocker Arm Trunion Kit Fits GM LS1 LS2 LS3 LS6 4.8 5.3 5.7 6.0 6.2L Engines no bolts

EPChunMi$88.435 rev

1y ago
A-Premium 16Pcs Alloy Steel LS1 Rocker Arms and Bolts with Trunion Kit Compatible with GM LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 346 1.7 Ratio 4.8L 5.3L 5.7L 6.0L

A-Premium 16Pcs Alloy Steel LS1 Rocker Arms and Bolts with Trunion Kit Compatible with GM LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 346 1.7 Ratio 4.8L 5.3L 5.7L 6.0L

A-Premium$139.0110 rev

1y ago
CHE4290 LS Trunnion Kit with LS Rocker Arm Bolts | Fits LS1 LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 5.3L 5.7L 6.0L 6.2L | High Performance Trunion Upgrade Kit

CHE4290 LS Trunnion Kit with LS Rocker Arm Bolts | Fits LS1 LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 5.3L 5.7L 6.0L 6.2L | High Performance Trunion Upgrade Kit

Michigan Motorsports$268.241 rev

1y ago

Trending

90-day click momentum
Pateyney LS1 LS2 LS6 5.7L 6.0L Enhanced Rocker Arms with Upgraded Trunion Kit Installed

Pateyney LS1 LS2 LS6 5.7L 6.0L Enhanced Rocker Arms with Upgraded Trunion Kit Installed

Pateyney$108.490.0★

▲ 195%
EPChunMi LS Rocker Arm Trunion Kit Fits GM LS1 LS2 LS3 LS6 4.8 5.3 5.7 6.0 6.2L Engines no bolts

EPChunMi LS Rocker Arm Trunion Kit Fits GM LS1 LS2 LS3 LS6 4.8 5.3 5.7 6.0 6.2L Engines no bolts

EPChunMi$88.434.6★

▲ 187%
CHE4290 LS Trunnion Kit with LS Rocker Arm Bolts | Fits LS1 LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 5.3L 5.7L 6.0L 6.2L | High Performance Trunion Upgrade Kit

CHE4290 LS Trunnion Kit with LS Rocker Arm Bolts | Fits LS1 LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 5.3L 5.7L 6.0L 6.2L | High Performance Trunion Upgrade Kit

Michigan Motorsports$268.245.0★

▲ 124%
BTR V2 Trunnion Kit with Bolts Premium Rocker Arm Trunion LS LS1 LS3 4.8 5.3 5.7 6.0 6.2 TK002

BTR V2 Trunnion Kit with Bolts Premium Rocker Arm Trunion LS LS1 LS3 4.8 5.3 5.7 6.0 6.2 TK002

Dynosty$168.144.5★

▲ 25%
BTR Brian Tooley Racing LS Rocker Arm Trunbion Kit (TK001) | Fits 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LQ4 LM7 LM4 Engines | Upgraded Bearing Trunnion Kit

BTR Brian Tooley Racing LS Rocker Arm Trunbion Kit (TK001) | Fits 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LQ4 LM7 LM4 Engines | Upgraded Bearing Trunnion Kit

BTR Brian Tooley Racing$119.194.9★

▲ 23%

What buyers say about ls trunion upgrade kit

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

What buyers love

Quality-Overall42%

“High quality, very easy to install with just a bench vise”

Value For Money20%

“this kit is well worth the money”

Assembly/Installation14%

“very well put together”

Durability6%

“Longevity”

Size-Overall4%

“Fit great”

Efficiency3%

“Looks good works good”

Advertised Vs Actual Product3%

“Does what they're supposed to”

Thickness3%

“The clips themselves are consistent on thickness”

Material Quality1%

“materials is obvious right out of the box”

Noise Level1%

“After installation, valve train operation is smooth and quiet, even at higher RPMs”

What buyers complain about

Quality-Overall43%

“this Kit is not High Quality”

Durability21%

“Snapped”

Defective Material/Parts14%

“Roller bearings came in broken”

Noise Level14%

“top end sounds like nothing”

Top return reasons

Defective Material/Parts24%
Size-Overall23%
Functionality-Overall7%
Shape/Style6%
Compatibility-Overall6%
Advertised Vs Actual Product6%
Mechanism Issues6%
Value For Money4%
Assembly/Installation4%
Quality-Overall3%

Common questions

Is ls trunion upgrade kit profitable to sell on Amazon United States?
The niche generates $77K/yr across 20 tracked products. 90-day search growth is +3.7%. Flapen's verdict: Skip it (39/100).
How competitive is the ls trunion upgrade kit niche?
13 brands and 53 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in ls trunion upgrade kit?
Top complaints mined from reviews: Quality-Overall, Durability, Defective Material/Parts. The return rate is 1.7%.
When does demand for ls trunion upgrade kit peak?
Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the ls trunion upgrade kit niche?
Listings span $48.75–$329.24; the average listing price is $145.13 (sweet spot $15–$100). The average incumbent carries 52 reviews — the moat a new listing must climb.