Is thetford rv toilet parts profitable to sell on Amazon United States?

The niche generates $517K/yr across 16 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +48.3%. Flapen's verdict: Worth a look (58/100).

How competitive is the thetford rv toilet parts niche?

10 brands and 69 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 84% of demand.

What do buyers complain about in thetford rv toilet parts?

Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 2.3%.

When does demand for thetford rv toilet parts peak?

Demand peaks in May–Jun–Jul; the busiest month runs 2.4× the quietest.

What does it cost to enter the thetford rv toilet parts niche?

Listings span $13.33–$202.83; the average listing price is $52.51 (sweet spot $15–$100). The average incumbent carries 522 reviews — the moat a new listing must climb.

thetford rv toilet parts

Worth a look

Shows a sweet-spot price point ($52.51 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Avg price

Great$52.51

avg listing price — sweet spot $15–$100

Review moat

Good521.81

avg incumbent reviews — the moat a new listing must climb

Growth

Good+48.3%

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

Returns

Good2.3%

return rate — above 5% kills the launch gate

Conversion

Good6.0%

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

Market size

Good$517K

$517K/yr · 163K searches

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Okay$13.33–$202.83

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

Competition

Okay63%

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

Brand share

Okay84%

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

Signals High Price

According to Flapen's Amazon United States niche tracking, thetford rv toilet parts is a $517K/yr Amazon United States market (163K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 58/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

thetford rv toilet parts market data

Units sold / yr: 8K–10K; avg 250–500/product
Revenue / yr: $420K–$525K; units × avg price
Conversion rate: 6.0%
Avg BSR: #69
Page quality: 0%
Prime: 88%
Sponsored: 81%
Out of stock: 0.0%
Avg brand age: 30 months
Avg seller age: 179 days

Competition & brand share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 falling

Sellers

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

11%

Vypart42%
Thetford22%
Ophjerg10%
prime&swift5%
Knocokie5%
TeegRoow5%
Open — no brand owns it (4 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +48.3% search growth over the last 90 days.

Peak months: May, Jun, Jul · busiest ÷ quietest = 2.4×

Open Trend

Top thetford rv toilet parts search terms

thetford rv toilet parts80K/yr +48.4%4.1% conv.
thetford rv toilet valve17K/yr +54.6%9.6% conv.
thetford rv toilet model 42070 parts7K/yr +166.1%1.5% conv.
thetford 4207211K/yr +56.3%2.3% conv.
thetford toilet parts7K/yr +86.4%2.5% conv.
42070 thetford rv toilet parts10K/yr -20.1%1.5% conv.
thetford rv toilets parts5K/yr +69.7%2.1% conv.
thetford aqua magic style ii parts4K/yr +4.0%2.5% conv.
thetford 420544K/yr +28.2%1.7% conv.
thetford aqua magic style ii6K/yr -27.2%4.6% conv.

All search terms

Top thetford rv toilet parts 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.

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

All 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

31705 31688 31687 31653 RV Toilet Water Valve kit- Freeze Resistance & Leakage-Resistant RV Toilet Parts for Thetford Aqua-Magic V High and Low by Vypart

Vypart$14.604.6★714 rev

42049 Water Valve Style II Kit for Thetford Aqua Magic Style II Toilets RV Toilet Water Valve Kit Replacement Style II Permanent Toilets Rv Toilet Parts for Thetford with Closet Flange Seal

Ophjerg$15.654.2★188 rev

Thetford 31705 Aqua-Magic V Toilet Water Module Assembly

Thetford$31.524.7★2,324 rev

Vypart 31705 RV Toilet Water Valve Kit - Fits Thetford Aqua-Magic V (High/Low Hand/Foot Flush) | Leak-Proof Freeze-Resistant Replaces 31688 31687 31653

Vypart$16.084.5★58 rev

31653 31705 31688 31835 31687 RV Toilet water Valve fit for Thetford RV Toilet Parts-Leak&Freeze-Resistant fit for Thetford Aqua-Magic V 31676 31675 31667 31658 31668 31650 31680 31671 prime&swift

prime&swift$15.074.7★276 rev

Newest

by launch date

34117 Waste Ball Kit Compatible with thetford aqua magic Style II/Style Lite/Style Plus RV Toilet Partial Replacement 34120 42048 42209 Includes Waste Ball Drive Arm RV Toilet Parts

Peakur$39.5010 rev

7mo ago

TeegRoow RV Toilet Seal Kit Replacement for Thetford Toilet Parts - 34120 Leak Proof Waste Ball Seal and 12524 Floor Seal Kit Fit for Aqua Magic Style Plus Style II Style Lite & Residence Toilets

TeegRoow$15.1421 rev

8mo ago

Vypart 31705 RV Toilet Water Valve Kit - Fits Thetford Aqua-Magic V (High/Low Hand/Foot Flush) | Leak-Proof Freeze-Resistant Replaces 31688 31687 31653

Vypart$16.0858 rev

11mo ago

RV Toilet Foot Flush Pedal with Flange Seal for Thetford Aqua-Magic Style II & Residence High Profile Toilets White Flush Pedal Replacement Kit Replaces OEM 42067 Durable RV Plumbing Repair Parts

Sounrui$35.205 rev

1y ago

42049 Water Valve Style II Kit for Thetford Aqua Magic Style II Toilets RV Toilet Water Valve Kit Replacement Style II Permanent Toilets Rv Toilet Parts for Thetford with Closet Flange Seal

Ophjerg$15.65188 rev

1y ago

What buyers say about thetford rv toilet parts

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

What buyers love

Size-Overall24%

“Excellent fit”

Assembly/Installation15%

“It was fully assembled”

Quality-Overall12%

“Good quality”

Leak-Proof9%

“Toilet no longer leaking”

Value For Money7%

“Great value”

Efficiency7%

“functions as it should”

Advertised Vs Actual Product5%

“As advertised”

Ease Of Use4%

“Easy peasy”

Maintenance And Repair2%

“Easy fix”

Product Condition1%

“The item is brand new as described”

What buyers complain about

Leak-Proof23%

“It continued to leak”

Durability12%

“Breaks often”

Size-Overall9%

“It doesnt even fit what it says it fits for immediately returned”

Assembly/Installation8%

“I could only use half the assembly though”

Quality-Overall4%

“so this raises concerns about durability or quality control”

Instructions/User Manual/Troubleshooting4%

“Instructing for grommets were poor”

Value For Money3%

“is a $2 valve too much to expect”

Compatibility-Overall3%

“Blade seal does not fit Thetford Aqua Magic V”

Material Quality3%

“They are made or cheap plastic that doesnt last”

Rusts/Corrodes2%

“Froze and cracked despite RV antifreeze”

Top return reasons

Size-Overall33%

Defective Material/Parts15%

Compatibility-Overall12%

Advertised Vs Actual Product12%

Leak-Proof11%

Functionality-Overall3%

Color2%

Assembly/Installation2%

Value For Money1%

Maintenance And Repair1%

Common questions

Is thetford rv toilet parts profitable to sell on Amazon United States?: The niche generates $517K/yr across 16 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +48.3%. Flapen's verdict: Worth a look (58/100).
How competitive is the thetford rv toilet parts niche?: 10 brands and 69 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 84% of demand.
What do buyers complain about in thetford rv toilet parts?: Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 2.3%.
When does demand for thetford rv toilet parts peak?: Demand peaks in May–Jun–Jul; the busiest month runs 2.4× the quietest.
What does it cost to enter the thetford rv toilet parts niche?: Listings span $13.33–$202.83; the average listing price is $52.51 (sweet spot $15–$100). The average incumbent carries 522 reviews — the moat a new listing must climb.