Keep clean, filtered air moving into your engine with the BALDWIN FILTERS air filter RS3871, a radial seal inner air element built for heavy-duty off-highway and vocational service. It installs on a wide range of Caterpillar, Hitachi, John Deere, Terex and Volvo equipment, and fits the 2008-2018 Peterbilt 320 (6-11.9L, L6-8.9L) and the 2017-2025 Peterbilt 520 (6-11.9L, L6-10.8L, L6-8.9L) — see the Buyer's Guide tab for the full 687-application list.
As an inner element, it seats inside the outer filter to provide secondary filtration, helping keep dust and debris out of the intake — especially when the primary element is being serviced.
A flame-retardant media version is also cataloged separately as RS4639 for applications that require it.
Interchange: Terex 15270189 · Volvo 11033997-5 · 110339975
What is the BALDWIN FILTERS air filter RS3871?
It's a radial seal inner air element that seats inside an outer filter to provide secondary filtration for heavy-duty off-highway and vocational engines.
Is the RS3871 engine air filter an inner or outer element?
It's the inner (secondary) element. It's designed to install inside Baldwin RS3870 or RS4638 outer air filters.
Will the RS3871 fit my Peterbilt?
It fits the 2008-2018 Peterbilt 320 (6-11.9L, L6-8.9L) and the 2017-2025 Peterbilt 520 (6-11.9L, L6-10.8L, L6-8.9L). Check the Buyer's Guide tab to confirm your exact model.
What does the RS3871 replace?
It replaces Terex 15270189 and Volvo 11033997-5.
What are the dimensions of the RS3871?
It measures about 7 1/16 in (179.4 mm) outside diameter, 5 11/16 in (144.5 mm) inside diameter, and 19 31/32 in (507.2 mm) in height.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
