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Decent, but it underperforms.
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Prices may varyThis product ranks #22 of 27 in Oil Filter.Three above it ↓
Last reviewed July 2, 2026
TL;DR No independent SAE J1858 multi-pass filtration data has been published for the PH12447; the Extra Guard series carries no beta-ratio certification. It is FRAM's standard-service PF66 cross for the 2019-present Sierra 1500 T1XX 2.7L L3B turbo and 3.0L Duramax, rated for up to 5,000-mile intervals.
Spin-on canister filter with cellulose-synthetic blend media and a 5,000-mile service rating. FRAM's Extra Guard PF66 cross for the 2.7L L3B and 3.0L LM2 Duramax in the 2019-present T1XX Sierra 1500 and Silverado 1500. No independent SAE J1858 beta-ratio data published; no named test method cited. Extra Guard series includes a silicone anti-drainback valve and SureGrip nitrile gasket; no cut-open of the PH12447 located to confirm internal construction. Fitment confirmed by multiple cross-reference sources; no thread-mismatch reports found.
Right pick for a Sierra 1500 or Silverado 1500 owner with the 2.7L L3B or 3.0L Duramax who does standard 5,000-mile oil changes and wants an aftermarket alternative to the OEM filter at a lower price. Skip if you run full-synthetic oil with change intervals above 5,000 miles -- a synthetic-rated extended-drain filter is the better match.
Not sure this one fits your vehicle? Use our free oil filter finder and pick your year, make, and model to see the filters confirmed to fit, each cross-checked by two independent filter manufacturers.
No chemical exposure pathway -- the PH12447 is a passive spin-on mechanical accessory with no SDS. Every spent filter retains residual motor oil, a hazardous waste in most US jurisdictions; drained filters are accepted at most automotive parts stores for recycling. The all-steel canister is recyclable as ferrous scrap after draining.
Yes. The FRAM PH12447 Extra Guard crosses to the ACDelco PF66/PF66A and fits the 2019-present GMC Sierra 1500 and Chevrolet Silverado 1500 equipped with the 2.7L L3B turbocharged 4-cylinder or the 3.0L LM2 Duramax diesel. Confirm your engine code using the retailer's fitment finder before purchasing.
The PH12447 is FRAM's Extra Guard cross for the ACDelco PF66 and PF66A, the OEM service filter for the 2.7L L3B and 3.0L LM2 Duramax engines in the 2019-present T1XX-generation Sierra 1500 and Silverado 1500. The current OEM equivalent is the ACDelco PF66F (GM 12737087).
The FRAM Extra Guard series, which includes the PH12447, is rated for up to 5,000-mile oil change intervals. It is FRAM's standard-service filter, not an extended-drain product. If you run full-synthetic oil with a longer change interval, a filter from FRAM's higher-tier series would be appropriate.
Yes. The Extra Guard series includes a silicone anti-drainback valve as standard construction. A silicone ADBV is documented across the Extra Guard product line; no independent cut-open of the PH12447 specifically was located to confirm the valve material for this exact part number.
No independent SAE J1858 multi-pass filtration test data has been published for the PH12447. The Extra Guard is FRAM's standard-service series and does not carry a published beta-ratio or efficiency certification. FRAM's Ultra Synthetic XG series carries higher-tier efficiency claims, but no independent third-party data exists for the Extra Guard.
The Amazon listing for FRAM Extra Guard PH12447 Engine Oil Filter carries a California Prop 65 warning. California requires this warning on a very wide range of manufactured goods — including rubber, vinyl, plastic, and metal automotive parts — whenever trace exposure to any of roughly 900 listed substances (commonly phthalates or heavy metals) is possible, regardless of whether the specific product poses a meaningful health risk. As a passive accessory, FRAM Extra Guard PH12447 Engine Oil Filter has no Safety Data Sheet, so there's no chemistry breakdown to translate beyond that.
Marketing copy from FRAM, via Amazon. Not editorial.
Per manufacturer cross-reference. Verify on Amazon before purchase.
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