aFe 51-76003 Momentum GT uses one three-layer oil-free synthetic Pro DRY S filter with a black XLPE tube and sealed sight-window housing. The exact manual distinguishes Tundra 4.6L/5.7L and Sequoia 5.7L applications and retains the original MAF and housing mounts.
The exact installation manual identifies Toyota Tundra 5.7L V8 2007-2021, Tundra 4.6L V8 2010-2019 and Toyota Sequoia 5.7L V8 2008-2022. The broader current product headline mentions both displacements without establishing Sequoia 4.6L approval. Named trim rows still require the listed engine and original housing/connections; a model-year row does not approve another engine. Exact-part retailer tables support an earlier 2010 Platinum start and separate TRD Pro 2015-2017 and 2019-2021 groups. The 2018 gap remains. Some retailers retain a narrower 2013 Platinum start; the earlier positive exact-part table is qualified against that disagreement. Sequoia named-trim expansion requires its own proof; the manual establishes the 5.7L family only.
| Years | Make | Model | Named trim; actual engine and hood requirements apply |
|---|---|---|---|
| 2007-2011 | Toyota | Tundra | SR5 |
| 2007-2013 | Toyota | Tundra | Base |
| 2007-2021 | Toyota | Tundra | Limited |
| 2010-2021 | Toyota | Tundra | Platinum |
| 2014-2021 | Toyota | Tundra | 1794 Edition |
| 2014-2021 | Toyota | Tundra | SR |
| 2014-2021 | Toyota | Tundra | SR5 |
| 2015-2017 | Toyota | Tundra | TRD Pro |
| 2019-2021 | Toyota | Tundra | TRD Pro |
| 2021 | Toyota | Tundra | Trail |
Verify 51-76003 against the actual engine, sensor and vent connections, mounting locations and applicable emissions requirements before ordering.
| Brand | aFe POWER |
| Manufacturer Part Number | 51-76003 |
| Application | The exact installation manual identifies Toyota Tundra 5.7L V8 2007-2021, Tundra 4.6L V8 2010-2019 and Toyota Sequoia 5.7L V8 2008-2022. The broader current product headline mentions both displacements without establishing Sequoia 4.6L approval. Named trim rows still require the listed engine and original housing/connections; a model-year row does not approve another engine. |
| Filter / media | 21-91072 / three-layer oil-free synthetic |
| Tube / housing | 05-76003B1 / 05-76003B2; Black XLPE |
| Coupling / band clamps | 05-00307 straight / two 03-50009 #056 |
| Vent hose | 05-00027, 18-inch length / 1/2-inch ID; crankcase vent use |
| Original equipment retained | MAF, mounting bolts, two isolation mounts, large grommet, spring clips, small vacuum hose and engine cover |
| Hardware qualification | One selected Pro DRY S filter is supplied, not both media. The straight coupling uses two #056 band clamps and the filter/housing uses the listed large T-bolt. A separate small filter-flange clamp appears in the steps without its own loose BOM line: verify boxed hardware rather than inventing a part or quantity. The supplied 18-inch hose is used for crankcase ventilation even though the black BOM calls its material fuel hose; it is not a fuel-feed conversion. Reuse the original MAF, two spring clips, two isolation mounts, large grommet and original mounting bolts. No replacement MAF or sensor gasket is listed. |
| Flow qualification | All three linked flow images label the tested filter Pro 5R: 241 CFM intake versus 174 CFM stock at 1.5 inches H2O, about 38.5% higher. The dry and red pages link this same oiled-media comparison, so it is not an independent dry/red measurement or a guaranteed power/efficiency increase. |
| Dyno qualification | All three linked dyno images are identical and identify a 2014 Toyota Tundra 5.7L with the standard dry AIS V4. Marked point differences are 20.10 hp and 32.56 lb-ft; those are different from run-maxima changes of 312.02 to 315.21 hp and 319.51 to 326.09 lb-ft, or 3.19 hp and 6.58 lb-ft peak-to-peak. Both runs list OE exhaust, OE headers, third gear and 10% starting load. SAE factors differ at 1.02 baseline versus 1.03 intake, temperature changes from 74.67 to 89.35 degrees F and relative humidity from 25% to 22%. Hood, fan and tire conditions are unspecified. This is not an independent Pro 5R, red-kit, 4.6L or Sequoia test or a guaranteed result. |
| Recheck / torque | 100-200 miles / no numeric torque supplied |
| Emissions | The current exact manufacturer listing states that this product is not currently CARB exempt, is unavailable for purchase in California and cannot be used on vehicles registered with the California DMV. Older black-kit manual race-use wording does not override the current restriction. |
| UPC | 802959540879 |
| WARNING | This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov. |
| Quantity | Manufacturer service part | Component |
|---|---|---|
| 1 | 21-91072 | Selected Pro DRY S filter, 9-inch height / 5-inch flange |
| 1 | 05-76003B1 | Black XLPE intake tube |
| 1 | 05-76003B2 | Black sealed XLPE housing |
| 1 | 05-00307 | Straight silicone coupling, 3.5-inch ID x 2-inch length |
| 2 | 03-50009 | #056 band clamps for straight coupling |
| 1 | 03-50267 | Listed large filter/housing T-bolt clamp |
| 1 | 03-50191 | Brass 3/16-inch hose nipple with 1/8-NPT thread |
| 1 | 05-00027 | 18-inch length, 1/2-inch ID crankcase vent hose |
| 2 | 05-50034 | M4 x 0.7 x 8 MAF screws; Chs Hd per black BOM |
| 1 | 05-01429 | Auxiliary-inlet silicone plug |
One selected Pro DRY S filter is supplied, not both media. The straight coupling uses two #056 band clamps and the filter/housing uses the listed large T-bolt. A separate small filter-flange clamp appears in the steps without its own loose BOM line: verify boxed hardware rather than inventing a part or quantity. The supplied 18-inch hose is used for crankcase ventilation even though the black BOM calls its material fuel hose; it is not a fuel-feed conversion. Reuse the original MAF, two spring clips, two isolation mounts, large grommet and original mounting bolts. No replacement MAF or sensor gasket is listed.
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
The exact installation manual identifies Toyota Tundra 5.7L V8 2007-2021, Tundra 4.6L V8 2010-2019 and Toyota Sequoia 5.7L V8 2008-2022. The broader current product headline mentions both displacements without establishing Sequoia 4.6L approval. Named trim rows still require the listed engine and original housing/connections; a model-year row does not approve another engine. Exact-part retailer tables support an earlier 2010 Platinum start and separate TRD Pro 2015-2017 and 2019-2021 groups. The 2018 gap remains. Some retailers retain a narrower 2013 Platinum start; the earlier positive exact-part table is qualified against that disagreement. Sequoia named-trim expansion requires its own proof; the manual establishes the 5.7L family only.
Which filter and color are supplied?One 21-91072 Pro DRY S three-layer oil-free synthetic filter with 9-inch height and 5-inch flange, plus black XLPE tube and housing. Wash, fully dry and do not oil this dry medium.
Is the coupling a bellows and how many clamps are listed?No. The exact BOM specifies straight 05-00307 coupling, two 03-50009 band clamps and the large 03-50267 filter/housing T-bolt. The installation also mentions a small filter-flange clamp without a separate loose BOM line; confirm actual boxed hardware.
Which mounts and original sensor transfer?Retain TWO original rubber isolation mounts, the separate large grommet, original housing bolts and original MAF. Insert housing bolts from INSIDE before installation. Do not mistake three rubber mount pieces for three new supplied bolts.
What happens to both original hose connections?Use the supplied 18-inch 1/2-inch-ID hose for the crankcase vent connection with the retained original spring clips. Reconnect the original small vacuum hose to the brass nipple. Do not treat the hose material description as a fuel-feed installation.
Does the engine cover reinstall and what hardware needs checking?Yes, reconnect the MAF and reinstall the engine cover. One selected Pro DRY S filter is supplied, not both media. The straight coupling uses two #056 band clamps and the filter/housing uses the listed large T-bolt. A separate small filter-flange clamp appears in the steps without its own loose BOM line: verify boxed hardware rather than inventing a part or quantity. The supplied 18-inch hose is used for crankcase ventilation even though the black BOM calls its material fuel hose; it is not a fuel-feed conversion. Reuse the original MAF, two spring clips, two isolation mounts, large grommet and original mounting bolts. No replacement MAF or sensor gasket is listed.
Are the headline gains independent tests of this kit?All three linked flow images label the tested filter Pro 5R: 241 CFM intake versus 174 CFM stock at 1.5 inches H2O, about 38.5% higher. The dry and red pages link this same oiled-media comparison, so it is not an independent dry/red measurement or a guaranteed power/efficiency increase. All three linked dyno images are identical and identify a 2014 Toyota Tundra 5.7L with the standard dry AIS V4. Marked point differences are 20.10 hp and 32.56 lb-ft; those are different from run-maxima changes of 312.02 to 315.21 hp and 319.51 to 326.09 lb-ft, or 3.19 hp and 6.58 lb-ft peak-to-peak. Both runs list OE exhaust, OE headers, third gear and 10% starting load. SAE factors differ at 1.02 baseline versus 1.03 intake, temperature changes from 74.67 to 89.35 degrees F and relative humidity from 25% to 22%. Hood, fan and tire conditions are unspecified. This is not an independent Pro 5R, red-kit, 4.6L or Sequoia test or a guaranteed result.
What recheck, torque and emissions restrictions apply?Recheck connections after 100-200 miles. No numeric torque is provided in the exact manual. The optional inlet plug is not a water-fording certification. The current exact manufacturer listing states that this product is not currently CARB exempt, is unavailable for purchase in California and cannot be used on vehicles registered with the California DMV. Older black-kit manual race-use wording does not override the current restriction.
Verify aFe 51-76003. With a cool engine, follow the manual battery-disconnection precaution. Remove the engine cover, disconnect the original small vacuum line, MAF plug and crankcase vent connection, loosen the throttle connection and remove the original intake/airbox assembly. Retain the two original hose spring clips. Transfer TWO rubber isolation mounts PLUS the large grommet to the new housing. Insert the original captive mounting bolts FROM INSIDE the housing before installation, then secure the housing without overtightening. Transfer the original MAF using the two specified M4 screws and install the brass nipple. Fit the selected filter with the large housing T-bolt; follow the filter-flange connection shown in the manual, noting the separate small-clamp/BOM discrepancy. Fit the straight throttle coupling and its two band clamps loosely. Insert the tube into the filter, rotate it forward toward the throttle body, align the coupling and tighten connections. Connect the supplied 18-inch crankcase vent hose using the retained spring clips, RECONNECT the original small vacuum hose and MAF harness, and REINSTALL the engine cover. Choose whether to fit the auxiliary-inlet plug. Recheck bolts, clamps and connectors after 100-200 miles. The exact manual supplies no numeric torque.
The exact installation manual identifies Toyota Tundra 5.7L V8 2007-2021, Tundra 4.6L V8 2010-2019 and Toyota Sequoia 5.7L V8 2008-2022. The broader current product headline mentions both displacements without establishing Sequoia 4.6L approval. Named trim rows still require the listed engine and original housing/connections; a model-year row does not approve another engine. Exact-part retailer tables support an earlier 2010 Platinum start and separate TRD Pro 2015-2017 and 2019-2021 groups. The 2018 gap remains. Some retailers retain a narrower 2013 Platinum start; the earlier positive exact-part table is qualified against that disagreement. Sequoia named-trim expansion requires its own proof; the manual establishes the 5.7L family only. The current exact manufacturer listing states that this product is not currently CARB exempt, is unavailable for purchase in California and cannot be used on vehicles registered with the California DMV. Older black-kit manual race-use wording does not override the current restriction. All three linked dyno images are identical and identify a 2014 Toyota Tundra 5.7L with the standard dry AIS V4. Marked point differences are 20.10 hp and 32.56 lb-ft; those are different from run-maxima changes of 312.02 to 315.21 hp and 319.51 to 326.09 lb-ft, or 3.19 hp and 6.58 lb-ft peak-to-peak. Both runs list OE exhaust, OE headers, third gear and 10% starting load. SAE factors differ at 1.02 baseline versus 1.03 intake, temperature changes from 74.67 to 89.35 degrees F and relative humidity from 25% to 22%. Hood, fan and tire conditions are unspecified. This is not an independent Pro 5R, red-kit, 4.6L or Sequoia test or a guaranteed result.
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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