The Toyota 22R engine has a durable 2.4L four-cylinder profile that benefits from a properly tuned carburetor. This guide highlights five reliable carburetor options designed for the 22R, emphasizing compatibility, choke type, and installation considerations. Each choice is evaluated for fitment with 22R-equipped Toyotas from the early 1980s through the 1990s, offering practical guidance for builders and restorers seeking performance and reliability without extensive customization.
Summary of chosen products:
| Product | Choke Type | Plug Type | Vehicle Range | Notes |
|---|---|---|---|---|
| maXpeedingrods TOY-505 (Round Plug) | Automatic Choke | Round Plug | 1981-1986, 1987 (first six months) | 2-barrel for 22R, reliable aftermarket replacement |
| PARTOL TOY-505 | Automatic Choke | Round Plug | 1981-1987 | Direct replacement with zinc alloy body |
| THUNDERMINGO TOY-507 (Square Plug) | Automatic Choke | Square Plug | 1987-1990 | Fits late 1987-1990 pickups and other 22R platforms |
| THUNDERMINGO TOY-505 (Round Plug) | Automatic Choke | Round Plug | 1981-1987 | Classic 22R replacement with standard bore |
| maXpeedingrods 21100-35520 (Square Plug) | Automatic Choke | 4-prong Square Plug | 1981-1995 | Wide vehicle coverage including Hilux and Celica |
maXpeedingrods TOY-505 2-Barrel Carburetor – 22R (Round Plug)
The TOY-505 2-barrel carburetor is designed for Toyota 22R engines in pickups from 1981–1986 and the first six months of 1987. It uses a round plug connector and features an automatic choke. Its air inlet bore is 40/32mm, with a Venturi diameter of 40/26mm. Bolt hole spacing is 97 x 50mm, supporting a straightforward swap for many 22R builds. Compatibility notes emphasize confirming old part numbers (TOY-505, C4036, 35290, 21100-35463) align with your engine’s needs before installation.
Key considerations: It offers a strong balance of performance, reliability, and ease of installation for classic 22R configurations. Pros include a relatively simple replacement path and a factory-like choke behavior. Potential concerns include ensuring exact part-number matching and post-install tuning to optimize fuel economy and throttle response.
PARTOL 22R Carburetor – Round Plug (TOY-505)
PARTOL’s TOY-505 variant targets Toyota pickups from 1981 through 1987, featuring a 2.4L 2366cc engine and a round-plug design. The metal body is described as heavy-duty zinc alloy with an automatic choke. Its compatibility aligns with the Toy-505, 35290, and C4036 family identifiers. Direct replacement aims to restore original performance with adjacent emphasis on maintaining near-stock fuel mileage while potentially adding horsepower.
Reference considerations: Verify the old part number before purchasing. The unit’s robust construction supports durability, while the automatic choke helps simplify cold starts. Installation should be followed by a basic tune to account for any engine wear or prior carb adjustments.
THUNDERMINGO TOY-507 2-Barrel Carburetor – Square Plug
THUNDERMINGO’s TOY-507 targets Toyota 22R engines in late-model 1987 (the last six months) and 1988–1990 pickups, Hilux, Celica, 4Runner, and other 22R platforms. It features a square plug connector and identical bore/venturi specifications (Air Inlet Bore 40/32mm, Bolt Hole Spacing 97 x 50mm, Venturi 40/26mm) with an automatic choke. This option provides compatibility for a broader range of 22R-powered vehicles while maintaining a familiar two-barrel layout.
Buying considerations: Square plug variants can simplify wiring and fitment for specific chassis. Pros include matched dimensions and common replacement numbers (21100-35463, 21100-35570). As with other carburetors, verify the exact engine year and plug style before purchase to ensure a proper fit and optimal performance.
THUNDERMINGO TOY-505 Round Plug – 22R Replacement
This THUNDERMINGO model is positioned as a direct replacement for the TOY-505, covering 1981–1987 models and the first six months of 1987 installations. It carries a 40/32mm air inlet bore, 97 x 50mm bolt spacing, and a 40/26mm venturi. The carburetor is listed as compatible with round-plug 22R setups, offering stable idle and responsive acceleration for classic Toyota trucks and SUVs.
Key considerations: Ensure compatibility with your vehicle’s year window and plug configuration. The product emphasizes a straightforward swap and reliable choke operation, but as with all carburetors, factory calibration may require adjustment after installation for best results.
maXpeedingrods 2-Barrel 22R Carburetor – 21100-35520 (Square Plug)
The 21100-35520 variant from maXpeedingrods uses a square plug for a broader set of 22R engine applications, including pickup models from 1981–1995, Hilux, Celica, Corona, and more. The bore and venturi are aligned with standard 2-barrel specifications (Bore 40/32mm; Venturi 40/26mm), and the unit employs an automatic choke. The four-prong square plug differentiates this option from round-plug variants and is compatible with a range of Toyota powertrains within the era.
Considerations: The square-plug design may improve compatibility with certain wiring harnesses and intake manifolds. Durability is supported by a sturdy aluminum/zinc alloy construction. Pros include broad fitment and straightforward replacement; cons include the need to verify exact plug configuration for your engine year and model to ensure an exact fit.
Buying Guide: Key Purchase Considerations And Comparisons
1) Fitment And Plug Type
Carburetor compatibility largely depends on plug type (round vs square) and the engine year. Round-plug units typically suit early 22R configurations (1981–1986/87 first six months), while square-plug designs address later 22R builds and some variations in the Hilux, Celica, and 4Runner lines. Always confirm the exact part number and plug style against your vehicle’s intake manifold and throttle linkage before purchase.
2) Choke Mechanism
Automatic chokes are common in these aftermarket 22R carburetors and help cold-start reliability. Some users prefer electric choke models for consistent warm-ups. Consider your climate, driving patterns, and preference for manual vs automatic choke behavior when choosing between options.
3) Material Durability
Most replacements use aluminum or zinc-alloy constructions, balancing weight, heat resistance, and longevity. Heavy-duty metals resist corrosion and attack from fuel residue, which is important for long-term reliability in classic replicas or daily drivers.
4) Compatibility With Vehicle Range
24- to 36-year ranges place many 22R engines in a broad spectrum of Toyota pickups, Hilux, Celica, and 4Runner models. Some listings emphasize broad fitment including 1981–1995 pickups and 1988–1998 Hilux models. When selecting a carburetor, verify you’re within the model year and drivetrain family to avoid fitment issues.
5) Installation And Tuning
Aftermarket carburetors commonly require a basic tune after installation. This includes adjusting idle, fuel mixture, and choke operation. While many parts are designed for direct replacement, a professional alignment may be advisable for vehicles with existing wear, vacuum leaks, or prior carburetor modifications.
6) Part Numbers And Replacement History
Noting part numbers like TOY-505, 21100-35463, 21100-35520, 35290, and C4036 helps ensure you purchase the exact fit for your engine family. Cross-checking these numbers against your current carburetor or service manual reduces the risk of wrong-part purchases and installation errors.
7) Price Versus Longevity
While price varies across brands, choosing a carburetor with a proven track record for the 22R engine—especially those designed specifically for the round or square plug configurations—tends to yield better long-term reliability and service life. Consider total ownership costs, including potential gaskets, linkages, and calibration parts needed for a complete setup.