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Which HVAC Refrigeration Compressor Fits? 4 Secop and SIKELAN Models Compared by Refrigerant, HP, and Price

Comparing four refrigeration compressors for HVAC and refrigeration jobs: Secop and SIKELAN models for R-404A/R-507, R-134a, and R-290 with listed prices from USD 112.66 to USD 273.28.

Last updated Aug 17, 2026

Quick Take

Choosing a refrigeration compressor for an HVAC or refrigeration repair starts with the refrigerant. These four models cover three refrigerants-R-404A/R-507, R-134a, and R-290-with listed prices spanning USD 112.66 to USD 273.28. One Secop compressor is listed as New - Open box, while the other three are listed as New. The least expensive listed option is an R-404A/R-507 compressor, and the most expensive listed option is an R-290 medium-back-pressure compressor. The two R-134a models in the middle give you a choice between different horsepower and voltage ranges.

Listed Price Comparison

ProductListed pricePrice bar
Secop NF5.5CLXUSD 112.66
Secop NF8.4FX2USD 177.23
Secop NLE11MNUSD 273.28
SIKELAN ADW142T6USD 199.99

How to Choose

  • Match the refrigerant first. The R-404A/R-507 option is the Secop NF5.5CLX; the R-134a options are the Secop NF8.4FX2 and SIKELAN ADW142T6; the R-290 option is the Secop NLE11MN.
  • For an open-box purchase on the R-404A/R-507 side, the NF5.5CLX is the only listed candidate.
  • If you need a compressor that covers both low- and high-back-pressure ratings, the NF8.4FX2 is the only listed model with both figures.
  • If you want a natural-refrigerant R-290 compressor, the NLE11MN is the listed choice.
  • If you want an R-134a low-back-pressure compressor with electricals, grommets, and sleeves included, the SIKELAN model is the one to compare.

Product Notes

Secop NF5.5CLX R404a R507 Refrigeration Compressor LBP 1624 BTU MBP 115V 1/3 HP

Secop NF5.5CLX R404a R507 Refrigeration Compressor LBP 1624 BTU MBP 115V 1/3 HP

Secop NF5.5CLX is listed as New - Open box, making it the only open-box option in this group. It is a reciprocating compressor for R-404A/R-507, rated at 1/3 HP, and the title points it at both low-back-pressure and medium-back-pressure applications. Its stated uses include appliances, food service equipment, vending machines, bottle coolers, and ice machines. What gives you pause is the condition note: while the other three compressors are listed as New, this one is not. If an open-box unit fits how you shop, this is the R-404A/R-507 compressor to compare against your job's horsepower needs.

Secop NF8.4FX2 R134a Refrigeration Compressor 1032 LBP 3767 HBP BTU 115V 1/4HP

Secop NF8.4FX2 R134a Refrigeration Compressor 1032 LBP 3767 HBP BTU 115V 1/4HP

Secop NF8.4FX2 is the only compressor in this set with both low- and high-back-pressure BTU ratings. It uses R-134a, is rated at 1/4 HP on 115V, and lists 1032 BTU at LBP and 3767 BTU at HBP. That makes it a broader match when an R-134a system could fall on either side of the back-pressure range. It comes from Secop's hermetic compressor line, which is built around compact design and low energy consumption. The drawback is that it is the lowest horsepower rating in the group; if you need 1/2 HP, the other R-134a option is the one to compare. For a 1/4 HP R-134a job, this model matches the stated specs.

Secop NLE11MN R290 Refrigeration Compressor 4167 BTU MBP 115V 60 Hz 1/2HP

Secop NLE11MN R290 Refrigeration Compressor 4167 BTU MBP 115V 60 Hz 1/2HP

Secop NLE11MN is the only R-290 compressor listed here. R-290 is a natural refrigerant identified as propane, and the compressor is rated at 1/2 HP with a 4167 BTU medium-back-pressure rating. It runs on 115V at 60 Hz. The intended use is commercial, including replacement for certain True and Delfield models. The trade-off is that R-290 is not interchangeable with the R-134a or R-404A/R-507 refrigerants in this group, so it only makes sense when the system is built for R-290. For a medium-back-pressure R-290 application, this is the listed compressor to compare.

SIKELAN ADW142T6 REFRIGERATION COMPRESSOR 1/2 HP 1372BTU LBP 120VAC R134A

SIKELAN ADW142T6 REFRIGERATION COMPRESSOR 1/2 HP 1372BTU LBP 120VAC R134A

The SIKELAN ADW142T6 is the other R-134a choice, and it is the higher-horsepower R-134a option at 1/2 HP. It carries a 1372 BTU LBP rating and is built for 110-120VAC. The set includes electricals, grommets, and sleeves, which is useful when you need those parts in one order. The described applications are water dispensers, small refrigerators, small freezers, and wine cellars. Its limitation is that it is an LBP-only model, so it is not the right choice for a high-back-pressure application. If you need an R-134a low-back-pressure compressor with those extras included, this is the model to compare.

Final Recommendation

Start with the refrigerant, then use back-pressure rating and horsepower to narrow the list. For an R-404A/R-507 replacement where open-box condition is acceptable, the Secop NF5.5CLX is the listed option to compare. For a 1/4 HP R-134a compressor with both low- and high-back-pressure ratings, the Secop NF8.4FX2 is the match. For an R-290 medium-back-pressure compressor, the Secop NLE11MN is the one to consider. For an R-134a low-back-pressure job with electricals, grommets, and sleeves included, the SIKELAN ADW142T6 is the listed pick.

Products in this article
Secop NF5.5CLX R404a R507 Refrigeration Compressor LBP 1624 BTU MBP 115V 1/3 HPUSD 112.66View on eBaySecop NF8.4FX2 R134a Refrigeration Compressor 1032 LBP 3767 HBP BTU 115V 1/4HPUSD 177.23View on eBaySecop NLE11MN R290 Refrigeration Compressor 4167 BTU MBP 115V 60 Hz 1/2HPUSD 273.28View on eBaySIKELAN ADW142T6 REFRIGERATION COMPRESSOR 1/2 HP 1372BTU LBP 120VAC R134AUSD 199.99View on eBay
Secop NF5.5CLX R404a R507 Refrigeration Compressor LBP 1624 BTU MBP 115V 1/3 HPUSD 112.66View on eBaySecop NF8.4FX2 R134a Refrigeration Compressor 1032 LBP 3767 HBP BTU 115V 1/4HPUSD 177.23View on eBaySecop NLE11MN R290 Refrigeration Compressor 4167 BTU MBP 115V 60 Hz 1/2HPUSD 273.28View on eBaySIKELAN ADW142T6 REFRIGERATION COMPRESSOR 1/2 HP 1372BTU LBP 120VAC R134AUSD 199.99View on eBay

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