Best Carburetor for Echo String Trimmer (2026)
5 carburetors for Echo string trimmers compared by fitment, kit contents and warranty, with RB-K93 kits for the SRM225 family and an RB-K75 kit for the SRM210 and SRM230 family.
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Top picks at a glance
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- 1
Best OverallHipa SRM225 Carb Kit9.7/10View on Amazon - 2
Best AdjustableHOODELL SRM225 Carb Kit9.6/10View on Amazon - 3
Best ValueHUZTL SRM225 Carb Kit9.6/10View on Amazon - 4
Best SRM210 SRM230 FitHUZTL SRM210 SRM230 Kit9.5/10View on Amazon - 5
New OEM Zama RB-K93 Carburetor Carb for Echo SRM-225 SRM-225iView on Amazon - 6
Carburetor for Badger WB26BCI 26cc 2-Cycle Grass ShearsView on Amazon
When the trimmer starts hard, idles rough or dies under load, the carburetor is often the part that needs attention. A replacement carburetor with a full tune-up kit in the box can bring a familiar trimmer back to steady work without a shop visit, and this guide compares the best carburetor for echo string trimmer options by fitment, kit contents and warranty.
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Quick picks
- Best Overall Hipa SRM225 Carb Kit: RB-K93 kit with stated dimensions, brass parts and a 1 year warranty. Check price on Amazon
- Best Adjustable HOODELL SRM225 Carb Kit: Adjustable mixture brass screw with 2 air filters and 2 grommets. Check price on Amazon
- Best Value HUZTL SRM225 Carb Kit: Full fuel maintenance kit for the SRM225 family. Check price on Amazon
- Best SRM210 SRM230 Fit HUZTL SRM210 SRM230 Kit: RB-K75 kit for SRM210, SRM230 and SRM211 trimmers. Check price on Amazon
Our acreage picks
Hipa SRM225 Carburetor for Echo SRM225, GT225 and PAS225 Trimmers, All-in-One Tune Up Kit
An RB-K93 carburetor for Echo SRM225, GT225 and PAS225 trimmers, with an all-in-one tune-up kit, brass components and a 1 year warranty.
Who it's for: owners who want stated dimensions and brass construction.
Who should skip it: anyone who needs an adjustable mixture screw, which only the HOODELL listing offers.
Read the full review
The Hipa kit replaces the ZAMA RB-K93 and Echo part numbers A021001690, A021001691 and A021001692, fitting the SRM225, GT225, PAS225, PE225, SHC225 and PPF225 family, with a factory precisely tuned carburetor and no adjustment needed.
Pros
- Fits the SRM225, GT225, PAS225, PE225, SHC225 and PPF225 family
- Detailed dimensions stated, including a 31mm mounting hole distance
- Brass components, composite rubber diaphragms and anodized aluminum body
- 1 year warranty stated, the only stated term here
Cons
- Spec table lists fuel type as Ethanol, while the other listings that state a fuel type list gasoline
- Only 1 grommet in the kit, where the HOODELL and Ferilter kits include 2
- Included components list an unclear 2 Cleaner item
- Spec table part number 4336552687 differs from the A021001690 series in the title and bullets
HOODELL Adjustable SRM225 Carburetor for Echo Trimmers with Tune Up Kit
An adjustable RB-K93 carburetor for Echo SRM225 and GT225 trimmers, with a tune-up kit and an adjustable mixture brass screw.
Who it's for: owners who want an adjustable mixture screw and a full kit.
Who should skip it: anyone who wants a stated warranty term, which only the Hipa listing provides.
Read the full review
The HOODELL kit replaces the ZAMA RB-K93 and Echo part numbers A021001690, A021001691 and A021001692, fitting SRM225, GT225, PAS225, PE225, PPF225 and SHC225 models. Its adjustable mixture brass screw has no blocked cap, for reaching full power, and the listing describes easy starting with stable performance.
Pros
- Adjustable mixture brass screw without a blocked cap
- Fits SRM225, GT225, PAS225, PE225, PPF225 and SHC225
- Kit includes 2 air filters and 2 grommets
- Rebuilds as the old carburetor comes off, with almost no adjustment required, per the listing
Cons
- No warranty term stated on this listing
- Fuel lines incompatible with greater than 10% ethanol fuel
- Listed as a generic model carb, not an Echo-branded part
- No dimensions stated on this listing
HUZTL SRM225 Carburetor for Echo SRM225 and GT225 Trimmers with Tune Up Kit
An RB-K93 carburetor for Echo SRM225, GT225 and PAS225 trimmers, with a fuel maintenance kit and a zinc exterior finish.
Who it's for: SRM225 family owners who want a full fuel maintenance kit at a straightforward spec.
Who should skip it: anyone who wants 2 air filters, which the Hipa, HOODELL and Ferilter kits include.
Read the full review
The HUZTL SRM225 kit replaces part numbers A021001690, A021001691 and A021001692 for the ZAMA RB-K93, fitting the SRM225, GT225, PAS225, PE225, PPF225 and SHC225 family, with a zinc exterior finish, a bolt-on flange type and dimensions of 3 in deep by 3 in wide by 3 in high.
Pros
- Fits SRM225, GT225, PAS225, PE225, PPF225 and SHC225
- Full fuel maintenance kit in the box
- Zinc exterior finish with a bolt-on flange type
- Covers the SRM225i, SRM225SB and SRM225U variants in its fit list
Cons
- No warranty term stated on this listing
- Fuel lines incompatible with greater than 10% ethanol fuel
- Only 1 air filter, where the Hipa, HOODELL and Ferilter kits include 2
- Spec table material list mixes ABS, alloy steel and polyurethane
Ferilter SRM225 Carburetor for Echo GT225 and SRM225 Trimmers with Tune Up Kit
An RB-K93 carburetor for Echo SRM225 and GT225 trimmers, with a tune-up kit, zinc finish and 2 air filters.
Who it's for: owners who want a full kit with 2 air filters and 2 grommets.
Who should skip it: anyone who wants a stated warranty term, which only the Hipa listing provides.
Read the full review
The Ferilter kit replaces the RB-K93 carb with part numbers A021001690, A021001691 and A021001692, fitting SRM225, GT225, PAS225, PE225, PPF225 and SHC225 models, with a zinc exterior finish and a bolt-on flange type.
Pros
- Fits SRM225, GT225, PAS225, PE225, PPF225 and SHC225
- Kit includes 2 air filters and 2 grommets per its bullets
- Zinc exterior finish with a bolt-on flange type
- Covers the SRM225SF and PAS225VP variants in its fit list
Cons
- No warranty term stated on this listing
- Spec table lists recommended use as Lawn Mower, while the title and bullets describe trimmer use
- Spec table lists 1 grommet piece, while the bullets state 2 grommets
- No dimensions stated on this listing
HUZTL Carburetor for Echo SRM210, SRM230 and SRM211 Trimmers with Tune Up Kit
An RB-K75 carburetor for Echo SRM210, SRM230 and SRM211 trimmers, with a fuel maintenance kit for the 210 and 230 family.
Who it's for: owners of SRM210, SRM230 or SRM211 trimmers who need the RB-K75 part.
Who should skip it: anyone with an SRM225 family trimmer, where the other four kits fit.
Read the full review
The HUZTL RB-K75 kit replaces part numbers A021000740, A021000741 and A021000742 for the ZAMA RB-K75, fitting the SRM210, SRM230, SRM211, GT200, HC150, PE200 and PPF210 family, with dimensions of 3 in deep by 3 in wide by 3 in high.
Pros
- Fits SRM210, SRM230, SRM211, GT200, HC150, PE200 and PPF210
- Full fuel maintenance kit in the box
- Replaces A021000740, A021000741, A021000742 and RB-K75
- Dimensions stated at 3 x 3 x 3 in
Cons
- Does not fit the SRM225 family, which the other four kits cover
- No warranty term stated on this listing
- Fuel lines incompatible with greater than 10% ethanol fuel
- Only 1 air filter and 1 grommet, where rivals include 2 of each
Other machines to compare
New OEM Zama RB-K93 Carburetor Carb for Echo SRM-225 SRM-225iCheck price on Amazon
Carburetor for Badger WB26BCI 26cc 2-Cycle Grass ShearsCheck price on Amazon
Side-by-side specs
| Model | Acre Score | Fits | Kit | Warranty |
|---|---|---|---|---|
| Hipa SRM225 Carb Kit | 9.7/10 | SRM225, GT225, PAS225 | Carb + tune-up kit | 1 year |
| HOODELL SRM225 Carb Kit | 9.6/10 | SRM225, GT225, PAS225 | Carb + tune-up kit | Not stated |
| HUZTL SRM225 Carb Kit | 9.6/10 | SRM225, GT225, PAS225 | Carb + fuel maintenance kit | Not stated |
| Ferilter SRM225 Carb Kit | 9.6/10 | SRM225, GT225, PAS225 | Carb + tune-up kit | Not stated |
| HUZTL SRM210 SRM230 Kit | 9.5/10 | SRM210, SRM230, SRM211 | Carb + fuel maintenance kit | Not stated |
Specifications are manufacturer rated as listed, collected 28 October 2026. Most kits replace the RB-K93, while one kit replaces the RB-K75 for a different trimmer family.
Acreage and terrain fit
Hipa SRM225 Carb Kit
HOODELL SRM225 Carb Kit
HUZTL SRM225 Carb Kit
Ferilter SRM225 Carb Kit
HUZTL SRM210 SRM230 Kit
Buying guide: choosing the best carburetor for echo string trimmer
Match the part numbers first
Fitment starts with the part number, not the trimmer name alone. Four kits here replace the RB-K93 with manufacturer part numbers A021001690, A021001691 and A021001692, fitting the SRM225, GT225, PAS225, PE225, PPF225 and SHC225 family. The fifth kit replaces the RB-K75 with part numbers A021000740, A021000741 and A021000742, fitting the SRM210, SRM230, SRM211, GT200, HC150, PE200 and PPF210 family. Verify the engine model and part numbers before purchasing, as the Hipa listing advises.
Kit contents compared
Every kit here includes 1 carburetor, 2 mounting gaskets, 2 primer bulbs, 1 spark plug, 1 fuel filter, 3 fuel lines or tubes and 1 vent. Air filters and grommets differ: the HUZTL kits include 1 air filter and 1 grommet, the Hipa kit includes 2 air filters and 1 grommet, and the HOODELL and Ferilter kits include 2 air filters and 2 grommets. The Hipa listing also states detailed dimensions, including a 31mm mounting hole distance and a 9mm throttle bore.
Ethanol fuel notes
Three listings warn that fuel lines are incompatible with greater than 10% ethanol fuel, and that higher ethanol content will ruin the fuel line. The Hipa spec table lists fuel type as Ethanol, while the other listings that state a fuel type list gasoline.
Adjustable or fixed
The HOODELL kit offers an adjustable mixture brass screw without a blocked cap. The Hipa listing states a factory precisely tuned carburetor with no adjustment needed. The remaining listings state neither, so adjustment decides only between those two kits.
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The Acre Score explained
The Acre Score weighs performance, build, value, safety and warranty, using only what the listing publishes. Only the Hipa listing states a warranty term, and no listing here states safety features.
| Product | Acre Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Hipa SRM225 Carb Kit | 9.7 | 30 | 22 | 21 | n/a | 3 |
| HOODELL SRM225 Carb Kit | 9.6 | 29 | 21 | 21 | n/a | 0 |
| HUZTL SRM225 Carb Kit | 9.6 | 28 | 21 | 20 | n/a | 0 |
| Ferilter SRM225 Carb Kit | 9.6 | 28 | 20 | 20 | n/a | 0 |
| HUZTL SRM210 SRM230 Kit | 9.5 | 27 | 20 | 20 | n/a | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score. Safety counts only for powered gear or where the listing states safety features; where it does not apply, the score is taken over the remaining 90 points.
FAQ: mowing large lots
How do I know which carburetor fits my Echo trimmer?
Match the part numbers: RB-K93 with A021001690, A021001691 and A021001692 fits the SRM225 family, while RB-K75 with A021000740, A021000741 and A021000742 fits the SRM210 and SRM230 family. Verify the engine model and part numbers before ordering, as the Hipa listing advises.
What is the difference between the RB-K93 and RB-K75 kits?
They fit different trimmer families. The RB-K93 kits fit SRM225, GT225, PAS225, PE225, PPF225 and SHC225 models, while the RB-K75 kit fits SRM210, SRM230, SRM211, GT200, HC150, PE200 and PPF210 models. Each kit lists its own fitment family, so match the part number to the trimmer.
What comes in a tune-up kit?
Each kit includes 1 carburetor, 2 mounting gaskets, 2 primer bulbs, 1 spark plug, 1 fuel filter, 3 fuel lines or tubes and 1 vent, with 1 or 2 air filters and 1 or 2 grommets depending on the kit.
Can I use fuel with more than 10% ethanol?
Three listings warn that fuel lines are incompatible with greater than 10% ethanol fuel, and that higher ethanol content will ruin the fuel line. Keep fuel at or below that level for those kits.
Does the Hipa carburetor need adjustment?
The Hipa listing states a factory precisely tuned carburetor with no adjustment needed, while the HOODELL listing offers an adjustable mixture brass screw without a blocked cap.
