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Throttle-body spacers for the 5.7 HEMI are application parts, not universal plates. Bolt pattern, intake tube and model year separate an early Ram from a later Ram, Durango, Jeep or LX-platform car. The options below identify the published vehicle fitment and, where applicable, whether the kit is for the factory intake or an aFe intake. Select by the manufacturer’s exact application guide and do not choose a spacer on the expectation of a particular power or fuel-economy result.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Spectre Performance 11258 | $75–$100 | Amazon · eBay |
| 2 | aFe Power Silver Bullet 46-32002 | $130–$150 | Amazon |
| 3 | aFe Power Silver Bullet 46-32006 | $220–$250 | Amazon |
| 4 | aFe Power Silver Bullet 46-32003 | $130–$170 | Amazon |
| 5 | aFe Power Silver Bullet 46-32005 | $125–$145 | Amazon |
| 6 | aFe Power Silver Bullet 46-32007 | $130–$170 | Amazon |
| 7 | AIRAID PowerAid 300-577 | $145–$165 | Amazon · eBay |
| 8 | AIRAID PowerAid 300-631-1 | $155–$180 | Amazon · eBay |
| 9 | AIRAID PowerAid 350-532 | $155–$180 | Amazon · eBay |
| 10 | JET Performance Powr-Flo 62139 | $160–$180 | Amazon |
The picks, in detail
Spectre Performance 11258
A machined-aluminum spacer listed by Spectre for 2003–2008 Dodge Ram trucks with the 5.7L HEMI. It is an early-Ram part, so it is not a substitute for a late-model Ram or car spacer.
- Part number 11258
- 2003–2008 Dodge Ram 5.7L application
- Gaskets and hardware included
- Specific early-Ram listing
- Straightforward factory-component installation
- Not for later Ram trucks
- Confirm the exact Ram configuration
aFe Power Silver Bullet 46-32002
aFe’s 46-32002 is for 2003–2008 Ram 1500, 2500 and 3500 trucks with the 5.7L HEMI when used with the specified aFe intake systems. Its instructions explicitly exclude the factory intake.
- Part number 46-32002
- 2003–2008 Ram 5.7L
- For specified aFe intake systems
- Published truck and engine fitment
- Clear aftermarket-intake limitation
- Does not fit the factory intake
- Early-truck application only
aFe Power Silver Bullet 46-32006
This factory-intake kit fits 2003–2008 Ram 1500, 2500 and 3500 5.7L HEMI trucks and 2004–2009 Durango 5.7L HEMIs. It includes an intake tube, coupling, clamps, spacer and gasket, and is specifically designed around the factory air intake.
- Part number 46-32006
- Factory-intake-specific kit
- Ram 2003–2008 and Durango 2004–2009 5.7L
- Covers both early Ram and Durango applications
- Includes the listed intake connection pieces
- Not for arbitrary aftermarket intakes
- More involved than a spacer-only installation
aFe Power Silver Bullet 46-32003
A separate aFe spacer for the 2004 Dodge Durango 5.7L HEMI with an aftermarket air intake. This is the Durango-specific counterpart to a factory-intake kit, not a generic Ram spacer.
- Part number 46-32003
- 2004 Durango 5.7L HEMI application
- Aftermarket-intake application
- Exact single-year Durango fitment
- Avoids forcing a factory-intake kit onto an aftermarket intake
- Very narrow vehicle application
- Availability can vary for this older part
aFe Power Silver Bullet 46-32005
The current 46-32005 application family covers 5.7L HEMI Ram, Ram Classic, Durango and Jeep Grand Cherokee vehicles by year-specific fitment. Use aFe’s vehicle selector for the exact model year rather than assuming every 5.7L HEMI shares the same intake arrangement.
- Part number 46-32005
- 5.7L HEMI multi-vehicle application family
- 6061-T6 aluminum
- Broad published late-model fitment
- Current retail listings
- Year and model selection is essential
- Not an early 2003–2008 Ram part
aFe Power Silver Bullet 46-32007
aFe lists the 46-32007 for 5.7L HEMI LX/LC vehicles including Chrysler 300, Dodge Charger, Dodge Challenger and Dodge Magnum within its published year ranges. It is for the car platform rather than a Ram truck.
- Part number 46-32007
- 5.7L HEMI Charger Challenger 300 Magnum applications
- Separate car-platform fitment
- Published 5.7L car fitment
- Useful where truck spacers do not apply
- Not a Ram spacer
- Check intake compatibility, especially with aftermarket systems
AIRAID PowerAid 300-577
AIRAID’s 300-577 is a PowerAid spacer for 2003–2008 Dodge Ram 1500, 2500 and 3500 5.7L HEMI trucks. It is a distinct early-Ram option with its own application-specific gasket and hardware package.
- Part number 300-577
- 2003–2008 Ram 5.7L HEMI
- PowerAid Helix Bore design
- Exact early-Ram application
- CARB executive-order application listing
- Not for later Ram generations
- Confirm the model and engine before ordering
AIRAID PowerAid 300-631-1
The 300-631-1 is listed for 2009–2015 Ram 1500, 2500 and 3500 pickups with the 5.7L HEMI, plus the 2009 Durango and Chrysler Aspen 5.7L applications. Its fitment is later than the 300-577.
- Part number 300-631-1
- 2009–2015 Ram 5.7L application
- Also listed for 2009 Durango and Aspen 5.7L
- Published late-Ram and SUV application list
- Application-specific brackets and gaskets
- Do not use for 2003–2008 Ram trucks
- Verify the exact model year
AIRAID PowerAid 350-532
AIRAID’s 350-532 is the HEMI car/SUV PowerAid option, sold for selected Chrysler, Dodge and Jeep 5.7L, 6.1L and 6.4L applications. For a 5.7L HEMI, verify the individual year and model instead of relying on the engine-family label.
- Part number 350-532
- Selected Chrysler Dodge Jeep 5.7L HEMI applications
- PowerAid series
- Separate non-truck application family
- Published fitment selector
- Not universal across HEMI vehicles
- Exact year/model verification required
JET Performance Powr-Flo 62139
JET’s Powr-Flo 62139 is listed for 2008–2023 Dodge Challenger models with the 5.7L HEMI, as well as the 6.1L and 6.4L variants. It is a Challenger-specific option, not a Ram fitment claim.
- Part number 62139
- 2008–2023 Challenger 5.7L HEMI
- Billet-aluminum spacer
- Published Challenger application
- Current retail listing
- Not for Ram, Durango or Charger without a separate application listing
- Verify the model before purchase
Buying tips
- Start with the year, model and 5.7L engine, then use the manufacturer’s fitment table rather than a broad HEMI search.
- Factory-intake-only language matters: a kit designed around a stock tube and coupling is not automatically compatible with an aftermarket intake.
- A spacer is not a replacement throttle body. Check supplied gaskets, hardware and intake-tube parts against the installation instructions before beginning.
- Do not infer a result from the bore pattern or marketing language; choose on fitment, legal requirements and installation compatibility.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.