2003 Honda Insight Automatic Transmission Parts

Engine:
995cc L3 ELECTRIC/GAS

This page lists 61 automatic transmission parts for the 2003 Honda Insight, across 14 part types, covering the 995cc L3 ELECTRIC/GAS engine. Every part shows its brand, manufacturer part number and fitment notes.

On the 2003 Honda Insight, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Most of the listed parts are Transmission Fluid (17 parts), Filter (10 parts) and Output Shaft Seal (10 parts). The other 11 part types cover the remaining 24 parts.

Case Vent

Brand Part Number Markets Notes Buy
DORMAN 14161
🇺🇸 US 🇨🇦 CA
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This table covers the vents on a transmission or axle housing.

Clutch Plate Pack

Friction Plate Pack

Brand Part Number Markets Notes Buy
RAYBESTOS POWERTRAIN RCP96371
🇺🇸 US 🇨🇦 CA
Automatic CVT trans. With GPX
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Steel Plate Pack

Brand Part Number Markets Notes Buy
RAYBESTOS POWERTRAIN STMHONDA42
🇺🇸 US 🇨🇦 CA
Steel Module With Start Clutch
Fitment notes — RAYBESTOS POWERTRAIN STMHONDA42
Steel Module With Start Clutch
Automatic CVT trans.
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RAYBESTOS POWERTRAIN STMHONDA71
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Steel Module Without Start Clutch
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This table covers the clutch-plate packs inside the transmission or transfer case.

Drain Plug Gasket

Brand Part Number Markets Notes Buy
DORMAN 652530CD
🇺🇸 US 🇨🇦 CA
20 MMAluminum
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This table covers the gaskets that seal the Drain Plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Filter

Economy

Brand Part Number Markets Notes Buy
VARIOUS MFR Popular PT99442
🇺🇸 US 🇨🇦 CA
Cartridge Filter
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ATP TF264
🇺🇸 US 🇨🇦 CA
OE ReplacementSpin On Filter
Fitment notes — ATP TF264
OE ReplacementSpin On Filter
Automatic CVT trans.
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Standard Replacement

Brand Part Number Markets Notes Buy
BECK/ARNLEY Popular 0440383
🇺🇸 US 🇨🇦 CA
Cartridge Type
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ATP B264
🇺🇸 US 🇨🇦 CA
Premium Replacement
Fitment notes — ATP B264
Premium Replacement
Cartridge Filter
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ATP B414
🇺🇸 US 🇨🇦 CA
Premium ReplacementSump Filter
Fitment notes — ATP B414
Premium ReplacementSump FilterWith 3rd Hand Gasket
Automatic CVT trans.
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BECK/ARNLEY 0440339
🇺🇸 US 🇨🇦 CA
Internal Filter
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BECK/ARNLEY 0440411
🇺🇸 US 🇨🇦 CA
Internal Filter
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HASTINGS / BALDWIN TF215
🇺🇸 US 🇨🇦 CA
Cartridge Filter
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VAICO V260418
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.
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VAICO V260430
🇺🇸 US 🇨🇦 CA
View on
Amazon

This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.

Fluid Cooler O-Ring

Brand Part Number Markets Notes Buy
DORMAN 82562
🇺🇸 US 🇨🇦 CA
Oil Cooler O-Ring and Gasket Assortment
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This table covers the Fluid Cooler O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.

Fluid Pan Drain Plug

Brand Part Number Markets Notes Buy
DORMAN 090178
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Gasket Or Seal Included: YES
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This table covers the Fluid Pan drain plugs.

Manual Shaft Seal

Brand Part Number Markets Notes Buy
BCA NS221207
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.
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NATIONAL 221207
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Honda trans.
View on
Amazon
WJB / INMOTION PARTS WS221207
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Honda trans.
View on
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This table covers the seals at the Manual Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Output Shaft Repair Sleeve

Brand Part Number Markets Notes Buy
BCA NS99139
🇺🇸 US 🇨🇦 CA
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NATIONAL 99139
🇺🇸 US 🇨🇦 CA
Fits LeftAutomatic CVT trans.
Fitment notes — NATIONAL 99139
Fits:
LeftAutomatic CVT trans.Honda trans.or RightAutomatic CVT trans.Honda trans.
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WJB / INMOTION PARTS WS99139
🇺🇸 US 🇨🇦 CA
Fits LeftAutomatic CVT trans.
Fitment notes — WJB / INMOTION PARTS WS99139
Fits:
LeftAutomatic CVT trans.Honda trans.or RightAutomatic CVT trans.Honda trans.
View on
Amazon

This table covers the wear sleeves used to restore a Output Shaft seal surface.

Output Shaft Seal

Brand Part Number Markets Notes Buy
ATP Popular HO27
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Outer Diameter: 2.1875"
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NATIONAL Popular 710314
🇺🇸 US 🇨🇦 CA
LeftAutomatic CVT trans.
Fitment notes — NATIONAL 710314
LeftAutomatic CVT trans.Honda trans.
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Amazon
BCA NS710314
🇺🇸 US 🇨🇦 CA
LeftAutomatic CVT trans.
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Amazon
BCA NS223553
🇺🇸 US 🇨🇦 CA
RightAutomatic CVT trans.
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NATIONAL 223553
🇺🇸 US 🇨🇦 CA
RightAutomatic CVT trans.
Fitment notes — NATIONAL 223553
RightAutomatic CVT trans.Honda trans.
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SKF 14018
🇺🇸 US 🇨🇦 CA
Right
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SKF 12989
🇺🇸 US 🇨🇦 CA
Left
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TIMKEN 223553
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.
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WJB / INMOTION PARTS WS223553
🇺🇸 US 🇨🇦 CA
RightAutomatic CVT trans.
Fitment notes — WJB / INMOTION PARTS WS223553
RightAutomatic CVT trans.Honda trans.
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Amazon
WJB / INMOTION PARTS WS710314
🇺🇸 US 🇨🇦 CA
LeftAutomatic CVT trans.
Fitment notes — WJB / INMOTION PARTS WS710314
LeftAutomatic CVT trans.Honda trans.
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Amazon

This table covers the seals at the Output Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Shift Shaft Seal

Brand Part Number Markets Notes Buy
ATP HO22
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Outer Diameter: 0.8125"
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Amazon
PIONEER 759172
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.
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Amazon
PIONEER 759052
🇺🇸 US 🇨🇦 CA
Pack Of 2
Fitment notes — PIONEER 759052
Pack Of 2
Automatic CVT trans.Outer Diameter: 0.8125"
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This table covers the seals at the Shift Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Torque Converter Repair Sleeve

Brand Part Number Markets Notes Buy
BCA NS99076
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.with MHTA Transmission code
Fitment notes — BCA NS99076
Automatic CVT trans.with MHTA Transmission codeHonda Transmission
View on
Amazon
NATIONAL 99076
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Honda trans.
View on
Amazon
WJB / INMOTION PARTS WS99076
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Honda trans.
View on
Amazon

This table covers the wear sleeves used to restore a Torque Converter seal surface.

Torque Converter Shaft Seal

Brand Part Number Markets Notes Buy
ATP HO16
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.
View on
Amazon
NATIONAL 710805
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Honda trans.
View on
Amazon
TIMKEN 710315
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.
View on
Amazon
WJB / INMOTION PARTS WS710805
🇺🇸 US 🇨🇦 CA
Automatic CVT trans.Honda trans.
View on
Amazon

This table covers the seals at the Torque Converter Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Transmission Fluid

ATF +4

Brand Part Number Markets Notes Buy
PENTOSIN 1058112
🇺🇸 US 🇨🇦 CA
ATF441 Liter
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PENTOSIN 1058212
🇺🇸 US 🇨🇦 CA
ATF445 Liters
View on
Amazon

CVT

Brand Part Number Markets Notes Buy
AISIN ATFHCV
🇺🇸 US 🇨🇦 CA
CVT Fluid1 Quart
Fitment notes — AISIN ATFHCV
CVT Fluid1 QuartHCVTF Formula1 Quart
Automatic CVT trans.
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Amazon
LUBEGARD 68112
🇺🇸 US 🇨🇦 CA
Complete CVT Fluid32 oz
Fitment notes — LUBEGARD 68112
Complete CVT Fluid32 oz
Automatic CVT trans.
View on
Amazon

Dexron

Brand Part Number Markets Notes Buy
ACDELCO Popular 109243
🇺🇸 US
Container Type: Plastic Container
Fitment notes — ACDELCO 109243
Container Type: Plastic Container
Automatic CVT trans.
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Multi-Vehicle

Brand Part Number Markets Notes Buy
LIQUI MOLY Popular 20032
🇺🇸 US 🇨🇦 CA
Top Tec ATF 18001 Liter
Fitment notes — LIQUI MOLY 20032
Top Tec ATF 18001 Liter
Automatic CVT trans.
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Amazon
VALVOLINE Popular VV3246
🇺🇸 US 🇨🇦 CA
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart
Fitment notes — VALVOLINE VV3246
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 QuartDEXRON VI, MERCON LV, DEX/MERC
Automatic CVT trans.Product Not Applicable For California
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Amazon
VALVOLINE Popular 773775
🇺🇸 US 🇨🇦 CA
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Fitment notes — VALVOLINE 773775
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Automatic CVT trans.Product Not Applicable For California
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Amazon
LIQUI MOLY 20018
🇺🇸 US 🇨🇦 CA
Top Tec ATF 12001 Liter
Fitment notes — LIQUI MOLY 20018
Top Tec ATF 12001 Liter
Automatic CVT trans.
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Amazon
LIQUI MOLY 22036
🇺🇸 US 🇨🇦 CA
Top Tec ATF 18005 Liter
Fitment notes — LIQUI MOLY 22036
Top Tec ATF 18005 Liter
Automatic CVT trans.
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Amazon
LIQUI MOLY 20020
🇺🇸 US 🇨🇦 CA
Top Tec ATF 12005 Liter
Fitment notes — LIQUI MOLY 20020
Top Tec ATF 12005 Liter
Automatic CVT trans.
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Amazon
LIQUI MOLY 20034
🇺🇸 US 🇨🇦 CA
Top TEC ATF 180020 Liter
Fitment notes — LIQUI MOLY 20034
Top TEC ATF 180020 Liter
Automatic CVT trans.
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LIQUI MOLY 20022
🇺🇸 US 🇨🇦 CA
Top Tec ATF 120020 Liter
Fitment notes — LIQUI MOLY 20022
Top Tec ATF 120020 Liter
Automatic CVT trans.
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LUCAS OIL 10418
🇺🇸 US 🇨🇦 CA
FULL SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt
Fitment notes — LUCAS OIL 10418
FULL SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt
Automatic CVT trans.
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LUCAS OIL 18007
🇺🇸 US 🇨🇦 CA
Full Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon
Fitment notes — LUCAS OIL 18007
Full Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon
Automatic CVT trans.
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Amazon
VALVOLINE 822389
🇺🇸 US 🇨🇦 CA
Import Multi-Vehicle ATF1 Quart
Fitment notes — VALVOLINE 822389
Import Multi-Vehicle ATF1 Quart
Automatic CVT trans.Product Not Applicable For California
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Amazon
VALVOLINE 881051
🇺🇸 US 🇨🇦 CA
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Fitment notes — VALVOLINE 881051
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Automatic CVT trans.Product Not Applicable For California
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This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid.

Transmission Fluid Additive

Brand Part Number Markets Notes Buy
LUBEGARD 67010
🇺🇸 US 🇨🇦 CA
Continuously Variable Transmission Recharge & Protect10 oz
Fitment notes — LUBEGARD 67010
Continuously Variable Transmission Recharge & Protect10 oz
Automatic CVT trans.
View on
Amazon

This table covers the conditioners and additives used with this transmission fluid.

Buying Automatic Transmission Parts for a 2003 Honda Insight

On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.

  • Confirm you have the 995cc L3 ELECTRIC/GAS engine — every part on this page is matched to it.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Transmission Fluid and Filter .

Frequently Asked Questions

How many automatic transmission parts fit the 2003 Honda Insight?

Our catalog currently lists 61 automatic transmission parts for the 2003 Honda Insight across 14 subcategories and 20 brands, covering the 995cc L3 ELECTRIC/GAS engine. Each part is matched to the engine(s) it fits.

What are the signs of automatic transmission problems on a 2003 Honda Insight?

Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2003 Honda Insight was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2003 Honda Insight?

Every part on this page is matched to the 995cc L3 ELECTRIC/GAS engine. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2003 Honda Insight

Automatic Transmission Parts for Other Honda Insight Years

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